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The Myth and Reality of Shooting in Manual Mode

21 Dec

I’ve heard it. You’ve heard it. And it’s a great big steaming pile of…baloney.

Myth – Professionals Only Shoot in Manual Mode

I recently read an account of a new photographer who heard that “expert” photographers only shoot in manual mode, so he headed out to shoot. Camera firmly set to M, he shot away, happy as could be. However, the results from that first exploration were, needless to say, disappointing; overexposures, under-exposures, and a lot of crappy, blurred photos.

Professionals Shoot in Manual Mode

I had about 10 seconds to make this image of a grove of Baobabs in Botswana. Had I been fiddling with finding the right manual settings, I likely would have missed the shot.

Here is the reality: Professionals and other experienced photographers use just about every shooting mode on their camera.

Those modes are there for a reason. Settings provide simplicity, speed, flexibility, or full control. Depending on the conditions in which you are shooting, any one of these may be appropriate. While other articles here at dPS discuss how to use each of the settings on your camera, I want to talk about the myth of Manual Mode, but also why it’s important to use it

Professionals Shoot in Manual Mode

Moving subjects and quickly shifting scenes are not conducive to manual mode.

The Professional Reality

Try shooting on full manual control while making images of birds in flight. Go on, try it. I’ll wait.

Professionals Shoot in Manual Mode

On the off chance that you actually went out and tried that exercise, I suspect you ended up with a lot of really bad photos. As birds passed quickly in front of different backdrops, as the sun darted in and out from behind clouds, the lighting conditions were undoubtedly in constant change. To adapt to those changes on the fly would be a nearly impossible task.

Professionals Shoot in Manual Mode

Rather, any professional would use one of the other settings. I, for example, would probably choose Shutter Priority mode under those conditions. That would assure I could maintain sharp (or artfully blurred) images as I shot, and leave the decision on aperture up to the camera. If I wanted a brighter or darker exposure I’d adjust the exposure compensation.

Now, if I was carefully shooting a landscape and had a particular vision for the final image, that’s when I’d make the switch to Manual Mode. In manual, I can take full control of the scene. I can adjust the depth of field, the exposure, incorporate blurs, or selective focus. In Manual Mode, I own all aspects of the final image, for better or worse.

Professionals Shoot in Manual Mode

My point here is simply this – professionals use all the tools at their disposal. If it were true that pros only use Manual Mode, then pro-level cameras would only have one setting. Quite obviously, that is not the case.

You Still Need to Shoot in Manual

Shoot in Manual Mode, but not all the time. But understanding exposure, focus, shutter speed, and aperture and their effect on the final image is the heart of photography. To master the technical aspects of image-creation, you need to be able to put all these together without the help of your camera.

Professionals Shoot in Manual Mode

Manual Mode is perfect for landscape photography because you have the time to dedicate to creating the image you envision.

Manual means full control

I regularly practice the art of manual settings. When a scene is in front of me, I’ll imagine a particular way to portray it. I’ll envision how bright I want the image to appear. I select the focal point, whether motion blur is incorporated or eliminated, and how deep the depth of field should be.

Once I’ve got the image in my mind. I’ll select the ISO, shutter speed, and aperture without using the camera’s light meter to help me. Then I click the shutter and have a look.

Professionals Shoot in Manual ModeThis exercise reminds me of light and settings and how the camera works, sure. But more so, it turns every aspect of the image into a purposeful decision. There is no “spray and pray” photography when you are shooting in Manual Mode. Setting your camera to that scary “M” means you grant yourself full control and full responsibility for whatever emerges.

Professionals Shoot in Manual Mode

Aurora borealis and most other night photography require the use of Manual Mode.

There is no better way to learn about your camera, light, and about thoughtful photography than to set your camera to Manual Mode, turn off the autofocus, and go make images.

Summary

It’s absolute nonsense that pros only shoot in manual. Utter garbage. Your camera has a bunch of settings for a reason. Shooting in just one would be like only eating one type of food. Each has a purpose, and each has their place in the art of photography.

Professionals Shoot in Manual Mode

Purposefully underexposed images are also well-suited to Manual Mode, particularly when you want to retain a shallow depth of field, as I did with this flower image.

However, and this is a big HOWEVER, shooting in Manual Mode may be the best tool at our disposal for turning our photography into a purposeful exercise. Using manual will force you to understand depth, light, exposure, blur, and focus.

So yes, you should shoot in manual mode. Just not all the time.

The post The Myth and Reality of Shooting in Manual Mode by David Shaw appeared first on Digital Photography School.


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Hasselblad adds X-Pan mode and EVF preview to X1D, plus AF to H lenses on the X system adapter

19 Dec
The X-Pan crop mode with the XCD 30mm F3.5

Hasselblad has released new firmware for its X1D mirrorless medium format camera that brings it as close to a digital X-Pan (you can read Hamish Gill’s writeup of the 35mm X-Pan II here) as we can sensibly hope for. Firmware v1.20 adds a series of crop modes that includes the 65:24 X-Pan ratio, as well as classic 1:1 square and other well-known medium format proportions.

The update also brings the much needed instant image preview mode to the camera’s EVF as well as the ability to review captured pictures via the viewfinder. And now autofocus can be used with certain H system lenses when they are fitted to the X1D via the XH adapter.

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During a recent trip to Hasselblad’s factory I was able to shoot with a camera loaded with the new firmware to try out the new features. I have to say I was disproportionally excited to use the X-Pan crop mode, and once I’d set it I had trouble switching it off because it makes everything look so good.

The camera had been set so the different crops could be cycled through using the front custom button, and with 50 million pixels on hand on the sensor I wasn’t too worried about a heavy crop leaving me with no resolution. Even with the dramatic crop that the X-Pan mode makes we are still left with an image area of 8272×3062 pixels – or 25.3MP.

Only the Raw files show the crop, and the crop isn’t permanent – at can be shifted, altered and undone entirely so the full image can be used.

While we get to see the crop in the viewfinder and on the rear screen of the camera, even the JPEG files are captured as whole 4:3 images. The crop only appears on the Raw files when they are displayed in Hasselblad’s Phocus software – and even the crop can be adjusted, shifted around or switched off.

Of course, you can crop any image you want to 65×24 using any software, but the fun here is in seeing the letter-box in the viewfinder and in the atmosphere composing with this anamorphic-style format creates. The unused area of the viewfinder is blacked out, but users can adjust the density of the mask so the whole scene can be viewed to make composition easier.

The new crop modes:

  • X-Pan Ratio (65:24),
  • 1:1
  • 7:6
  • 5:4
  • 3:2
  • 16:9
  • 2:1
  • A4
  • US Letter

The new preview mode in the viewfinder is nothing special, but shows Hasselblad catching up with a feature offered by every other mirrorless camera. The new option to back-up images from one SD card to the other in slot two is hardly revolutionary either, but very useful all the same.

Ove Bengtsson, Hasselblad product manager, explains that the HC lenses are designed for a phase detection system, but that they can now be used with AF on the X1D

What will be interesting to existing H system users is the ability to use contrast detect AF with certain HC lenses with the XH adapter. Ove Bengtsson, Hasselblad’s product manager, explained that while the AF would be fast enough for a hand-held portrait it won’t be quick enough to shoot sport or action.

‘Our AF system is designed to be accurate rather than quick’ he told me. ‘These are lenses designed for phase detection systems, and we have to move a lot of glass. We don’t use internal focusing systems with small AF groups as these will, at some focus positions, compromise image quality. We often have to move the whole lens construction during focusing, so when working with a contrast-detection system the most difficult thing is to stop the lens after it has passed the peak and bring it back to the correct position. But as I said, image quality is our priority – not AF speed.’

The X1D can now provide contrast detection AF with certain H system lenses when they are mounted via the XH adapter.

To bring AF to the HC series the lens needs its firmware updates as well as the camera. The following lenses will be compatible:

  • HCD 4/28mm
  • HC 3,5/35mm
  • HC 3,5/50 mm
  • HC 3,5/50 mm II
  • HC 2,8/80 mm
  • HC 2,2/100mm

New v1.20.0 firmware for the H6D brings many of the updates that the X1D received, including the crop modes in Live View, dual card back-up and the lens data inserted into image EXIF information. Both cameras also have a new display mode when the spirit level is active that includes basic exposure information instead of just showing a blank screen.
For more information see the Hasselblad website, where you can download the X1D firmware and the H6D firmware.

Press release

HASSELBLAD FIRMWARE UPDATE 1.20 FOR X AND H SYSTEMS

Hasselblad continues to push the development of their systems further with new features in the 1.20 Firmware update.

Hasselblad continues to expand on the capabilities of its highly unique and renowned camera systems with the latest firmware update. The 1.20 Firmware brings exciting new updates and functionality to the X and H Systems that allow photographers and artists help capture their creative vision.

These new features include Instant Preview and Imaging Browsing through the X1D EVF, a beneficial utility that many photographers rely on. Firmware 1.20 also offers creative Selectable Crop Modes including the popular X-Pan Ratio (65:24), 1:1, 7:6, 5:4, 3:2, 16:9, 2:1, A4, US Letter and more.

“Hasselblad is a company that designs and creates tools for photographers. We have released many firmware updates in the past year. It shows our dedication to our customers and that we are listening to their feedback on how to improve.” said Ove Bengtsson, Product Manager.

Hasselblad is pleased to also announce contrast autofocus compatibility using the XH lens adapter with a select group of HC/HCD lenses. A full list of updates for the X and H Systems can be found below along with compatible lenses for the XH lens adapter.

https://www.hasselblad.com/x1d/firmware/
https://www.hasselblad.com/h6d/firmware/

X1D: v1.20.0

  • Instant preview and image browsing in EVF
  • Selectable crop modes
  • Back-up to secondary card
  • Added EXIF tag: Lens Model
  • Spirit level overlay: More info added (Exposure time, Aperture value, ISO)
  • Touchpad: Pan in zoomed-in EVF live view
  • Touchpad; Move focus point with HDMI attached screen
  • Contrast auto focus with XH adapter*
    *works now with following lenses:
    HCD 4/28mm
    HC 3,5/35mm
    HC 3,5/50 mm
    HC 3,5/50 mm II
    HC 2,8/80 mm
    HC 2,2/100mm

The lenses need to be upgraded to lens firmware version 19.0.2
More info here: https://www.hasselblad.com/x1d/firmware/

H6D: v1.20.0

  • Selectable crop modes in Live View
  • Back-up to secondary card
  • Added EXIF tag: Lens Model
  • Spirit level overlay: More info added (Exposure time, Aperture value, ISO

Articles: Digital Photography Review (dpreview.com)

 
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Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

14 Dec

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Like it or not, 2017 is the year that background-blurring Portrait Modes gained major traction in smartphone photography. Apple and Google both offer improved versions of the mode in their latest devices, making for better-looking results all around. But the two manufacturers take somewhat different approaches to the process, each with different limitations and strengths. Take a look some side-by-side shots to see how they square up, and learn about some of the underlying technologies in the accompanying text.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/60sec 4.459mm ISO 382

Because the Pixel 2 back cameras use both a depth map (stereo) generated from the split pixels as well as ‘segmentation’ (which uses machine learning to identify people / faces vs. background), both subjects in this photo are largely in focus. This is a result one wouldn’t expect from real optics, since the person behind should also be blurred. This doesn’t always happen with the Pixel 2, but sometimes it does if the subjects are close to one another and both identified as people / faces. Sometimes it’s actually desirable, but at other times it can feel unnatural.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/40sec 4.459mm ISO 400

Because of the F1.8 lens and HDR+ noise averaging (with alignment of images), the Pixel 2 can take photos of even slightly moving subjects in low light. Again note the progressive blur here: the back of the baby seat is only slightly blurred as are the switches in the background but the trees against the sky very far away are far more blurred.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/120 6.6mm ISO 80

Here the iPhone’s longer – albeit slower (F2.8 vs. F1.8) – lens renders the background blurrier than the similar Pixel 2 shot. Note the odd dark/light patterns in the out-of-focus highlights though. This is commonly seen in out-of-focus highlights on iPhone shots, but not on the Pixel’s shots.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/209sec 4.459mm ISO 50

The background is a bit less blurred vs. the iPhone shot, probably largely because of the shorter focal length. Note the algorithm has mistook the bike’s steerer tube as part of the background (or foreground). Note the slightly darker centers in the out-of-focus highlights. More on this in the next photo…

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/209sec 4.459mm ISO 50

Lenses in smartphones have complex aspherical elements in them, which can lead to somewhat unpleasant disc-shaped blur that lends itself to things like donut-hole and generally ‘busy’ bokeh. Portrait mode helps mitigate this effect by blurring background and foreground pixels enough that these odd effects are essentially ‘evened out’. But not perfectly: the pixels in the dark rings in the center of each OOF highlight are still replaced by translucent (larger) discs of the same color, meaning there will still be some dark translucent circles in those areas. It’s subtle, since most of the pixels in those OOF highlights are light, not dark, but it’s still there if you look for it (in the previous photo).

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/120sec 6.6mm ISO 320

Two things of note in this iPhone shot here: (1) note the patterning within the out-of-focus highlights (it’s not a uniform disc) and (2) the blown highlights on the wood since HDR is shy to activate in Portrait Mode. Often tapping on the bright overexposed portion in your preview will darken the image enough to force the iPhone to turn on its HDR mode, but results can be inconsistent. The Pixel 2 cameras in comparison are always operating in HDR+ mode, even in Portrait mode, and are less prone to this.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 89

Note the far better exposure vs. the iPhone: HDR+ ensured the wood in Portrait mode shot did not blow out.

Also, note the brightest out-of-focus highlight, just to the left of the plant. It does *not* have a darker middle as we saw in the bike shot. This is because in the original shot (next photo), this highlight is completely blown, so the algorithm isn’t starting with the donut-hole disc we saw in the out-of-focus yellow lights in the bike shot. Completely blown out-of-focus highlights will look smooth and uniform – more so than with the iPhone 8.*

*It’s important to keep in mind that since the blurs are largely algorithms, some aspects of the bokeh may be updated simply by software updates. The comments we’re making throughout here are only really applicable for the software versions we shot the images with.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 89

Note the three major out-of-focus highlights just to the left of the plant. The darker ones show donut-hole bokeh but are dim enough that they get completely blurred into surrounding pixels in the Portrait mode shot (previous photo). The blown out-of-focus highlight to the left of them gets blurred to a pleasing uniform disc, without a dark center (which was not the case in the yellow out-of-focus highlights in the bike shot, which had slightly darker centers).

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 218

Sometimes, with very close-up objects, we’ve noticed the Pixel 2 cameras do not blur the background much, if at all. Compare this Portrait image to the original image (next photo).

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 218

Non blurred version of previous image. It’s not much different. We haven’t noticed this issue with the iPhone.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/120sec 6.6mm ISO 200

The sprouts in the back cause artifacts in this image (see next image for comparison). This can happen with dual camera setups, since the two cameras often see very shifted stereo pairs for close objects. If the two cameras see two different things at what it thinks is the same location in the shot, this can cause artifacts not as easily caused from less separated stereo pairs (although lower separation comes with its share of issues as well).

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 127

The Pixel 2 cameras’ stereo pair viewpoints are less than 1mm apart (roughly the diameter of the lens), and appear to have fewer issues with artifacts when shooting close-up objects against farther backgrounds. Since overall stereo disparity in the pair isn’t drastic, there’s less of a chance that the two perspectives see different things at the same image location. Note the sprouts here don’t get blurred oddly as in the iPhone image.

Also note the progressive blur in the bread, with the closer parts of the bread less blurred than the further parts. This is because Google uses the stereo pair of images to generate an actual depth map. The subject in focus shows no stereo disparity, objects progressively behind show more and more disparity while objects in front show more disparity but in the *opposite* direction. This is how the algorithms can generate essentially a ‘heat map’ of further and further behind the subject (or in front) from which it decides how much blur to apply to each pixel.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/60sec 6.6mm ISO 320

The iPhone version of this shot has more blown highlights than the Pixel 2 version, presumably because HDR did not kick on automatically.

Also, there are more depth map errors around the subject’s hair, again possibly because of how close to the camera she is (where the two cameras are likely to see different things at the same image location).

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 147

The Pixel 2 version of this shot has far fewer depth map errors around our subject, particularly her hair.

Also, since HDR+ is always active on Pixel 2 cameras, the captured dynamic range is far higher.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/120sec 6.6mm ISO 32

We found the iPhone to struggle a little more with autofocus in backlight and low light, but it did nail focus here for the most part.

Interestingly, the iPhone appears to preserve more of the out-of-focus highlights in the background than the Pixel 2 (next photo).

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/867sec 4.459mm ISO 50

The Pixel 2 appeared to struggle less with autofocus than the iPhone 8 Plus, nailing it here.

Of note though is that the Pixel 2 appears to have preserved fewer of the out-of-focus highlights (‘bokeh balls’ as we call them here around the office), or at least dimmed them compared to the more obvious ones in the iPhone shot. We wonder if this has something to do with the HDR+ algorithm, but are purely speculating.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/60sec 6.6mm ISO 250

Often, the iPhone 8 Plus in Portrait Mode would overexpose high contrast scenes, instead of activating HDR mode. HDR seemed reticent to activate in Portrait mode, leading to the blown highlights on faces here.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/120sec 6.6mm ISO 160

Tapping on the blown highlights resets dims the exposure and often forces HDR mode to activate. The Pixel 2 phones don’t have this issue, as they’re always operating in HDR+ mode.

Once exposure is adjusted though, the result is a very well-lit image with nice colors and convincing background blur.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 52

Since the Pixel 2 cameras are always operating in HDR+ mode, blown highlights are well-controlled here resulting in a well-exposed image. Sometimes with very high contrast scenes, though, HDR+ images can start looking a bit ‘crunchy’ (the same thing happens in HDR merging software depending on the ‘radius’ setting).

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/120sec 6.6mm ISO 25

Here the iPhone 8 Plus produces a more pleasing result, with fewer depth map artifacts. It also preserves the warm tone of the sunset scene. Auto White Balance was generally stable and produced desirable results across many different shooting scenarios on the iPhone 8 Plus.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/1560sec 4.459mm ISO 86

The Pixel 2 cameras often show rather extreme variation in White Balance from shot to shot. Quite often, it neutralizes color casts too much: for example, here, it should have chosen a white balance closer to Daylight instead of neutralizing the warm sunset tones.

Also, when tones in the background and foreground are very similar, depth map errors can result. Note the errors around the hair of our subject, which might have been hard to distinguish from the dark trees in the background.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/1560sec 4.459mm ISO 61

Another example of depth map errors due to objects possibly appearing to similar to one another. Look at the artifacts around the hair on the right side of our subject and around her sunglasses. Next, look at how these regions might appear similar to one another in a lower resolution depth map by comparing to the un-blurred image (next photo)

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/1560sec 4.459mm ISO 61

You can see the areas of the blurred photo (previous) that contained artifacts are regions where the foreground and background (the hair vs. tree branches; the sunglasses vs. the dark background) might appear indistinguishable as you try and build a lower resolution depth map.

Another possibility is errors in segmentation, the process of identifying the entire foreground subject using machine learning.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 281

For such a complex scene, the Pixel 2 did remarkably well, choosing to blur more than the iPhone in this case (next photo).

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/60sec 6.6mm ISO 800

The iPhone also does well, but here keeps more foreground leaves in focus before extremely defocusing the farther background.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 281

Note the progressive blur: objects further in the background are blurred more than objects closer. This is because the depth map is generated from actual stereo measurements of how far an object is from the focus plane.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/60sec 6.6mm ISO 500

Apple quoted with the iPhone 7 that it calculates 9 different layers when making its depth map. It presumably does so by a process of precalibration, where certain stereo disparities from the focus plane correlate with certain distances from it. We wonder if this might be why sometimes the subject looks somewhat cut-out from a far away background, if there aren’t enough objects behind the subject that fall within those 8 layers (or however many Apple is now using) before that 9th (hyperfocal or infinity) one.

Either that or the masking in this photo makes the subject look somewhat cut-out (see around the hair).

It’s impressive though that the arm rest in front of our subject is properly blurred.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 207

The blur in this image looks more natural and progressive to us. The colors leave a bit to be desired though, with somewhat desaturated, greenish skintones.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 159

This looks more natural to us than the ‘cut-out’ look of the iPhone image, interestingly. However, what’s odd is the color tuning, which is different from the front-facing camera (next photo).

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/60sec 6.6mm ISO 400

We can’t help but feel our subject appears more ‘cut out’ against the background here. We wonder if this has something to do with the number of layers of depth mapping, or a suboptimal masking process (around the hair particularly).

Skintones are more pleasing than with the Pixel 2 image, though.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F2.4 1/60sec 3.38mm ISO 149

The front facing camera oddly has a different color tuning than the back camera and, arguably, a bit more pleasing. Skintones are more magenta as opposed to the cool, sometimes greenish skintones with the rear camera.

It’s worth noting the iPhone 8’s front camera cannot do Portrait mode. The Pixel 2’s front camera does not have a dual-pixel sensor on its front camera, so performs this blur simply through a process of segmentation. That’s where machine learning comes in. Google trained a ‘convolutional neural network’ with nearly a million images of people (‘and their hats, sunglasses, and ice cream cones’ according to Principal Engineer Marc Levoy) to learn which pixels belong to people vs. not.

And impressive result, given the lack of a depth map. You won’t get the progressive gradual blur you get with the real camera, but for selfies this is probably ‘good enough’.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/60sec 4.459mm ISO 382

I’ve included this here because I just wouldn’t have expected a smartphone to generate an image like this if you were to ask me just a year or two ago. In low light, dual-pixel AF got focus (it’s a little soft because Portrait mode uses a digital crop, then upscales), and foreground and background blur are both well controlled. Look at the progressive foreground blur on the right side of the plastic food table.

The image remains clean thanks to multi-image averaging, while using 1/60s indoors to ensure at least some sharp shots of even a toddler.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/60sec 6.6mm ISO 1250

The iPhone’s F2.8 aperture in Portrait mode (and smaller sensor), and likely the lack of the 9-frame image averaging HDR+ uses on the Pixel 2 results in many unusable Portrait mode images in low light. Compare this shot to the Pixel 2 one next…

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/60sec 4.459mm ISO 258

The use of a faster aperture (and likely larger sensor even after the digital crop) and 9-frame image averaging of HDR+ generally yields far more pleasing low light portraits on the Pixel 2 than on the iPhone 8 Plus.

HDR+ uses intelligent tile-based image alignment that can keep even moving subjects sharp by selecting appropriate ’tiles’ from the sharper images of the subject within the 9-frame buffer used for a single shot. That’s right, the camera is constantly shooting 9 full-resolution images at a minimum of 60 times a second – which also ensures zero shutter lag.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2
F1.8 1/60sec 4.442mm ISO 213

We’ve found some depth map errors can occur around high contrast edges. Note the dark rails surrounded by light backgrounds can cause problems. Still, this is a heck of a pleasing image of constantly moving toddler… taken indoors on a smartphone.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/3344sec 4.459mm ISO 51

Running toddler. Focused (well enough). Isolated from the background. Taken on a smartphone.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/294sec 6.6mm ISO 20

This is a good example of progressive blur with the iPhone 8 Plus. Note how the grass only a bit behind the subject is less blurred than the grass far behind the subject.

Furthermore, in this scenario, HDR did kick in in Portrait mode quite often, resulting in even exposures.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/5848sec 4.459mm ISO 61

This is another good example of the progressive blur thanks to the depth map on the Pixel 2: while all the grass and the background looked pretty much in focus in the original, the grass nearer to the subject is blurred less than the grass further away.

There are some artifacts around the subject’s hair, but that’s not surprising considering she was running toward me while I was running backward. The Pixel 2’s superior Dual Pixel AF allowed me to get the right moment more easily – it’s often as fast and responsive as a high-end ILC – while the iPhone 8 Plus would often experience a re-focusing lag after pressing the shutter button.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/585sec 6.6mm ISO 20

The extra telephoto reach of the iPhone is useful for further compressing foreground and background (and magnifying the background), which can be useful. The iPhone 8 Plus also tended to render more pleasing blue sky tones, and saturation generally.

And remember, since you’re shooting HEIF, you get extra storage space savings, and the advantages of 10-bit files with support for more colors thanks to the wide gamut P3 capture. Encoding in P3 gives the cameras a wider color palette to work with after Raw capture.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/2342sec 4.459mm ISO 51

Naturally there’s less compression with the Pixel phones due to their wider angle camera used in Portrait mode, but I quite like wide-angle portraiture.

Note the overall lower saturation, and somewhat bland skies. This is up to personal preference, but one thing to note is the Pixel cameras only output sRGB images. This means the color palette with which the camera can ‘draw’ is limited compared to recent iPhones. Google probably chose this method for now because sRGB is a good standard for most people, and Google doesn’t have a key advantage Apple has: a proper ecosystem. Apple is implementing P3 displays in all its devices, from its iPads to its Macbook Pros to its iMacs. That means you’ll actually be able to enjoy those extra colors in those P3 images – if they’re there – across all Apple devices.

The movie industry has already accepted P3 as the new standard (think of it like Adobe RGB but with more saturated reds, yellows and greens, but a little less cyan-green and cyan saturation). The video industry is eventually aiming for an even larger gamut: Rec.2020, which is only a bit smaller than ProPhoto RGB, and it’s great to see Apple pushing the stills industry to adopt it as well.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Sony a7R II
F1.8 1/4000sec 55mm ISO 100

Just for fun, we’ve included this full frame 55/1.8 shot. On a high resolution screen, or viewed at 1:1, the quality is obviously far above what either smartphone can produce. But flip to the next image and view it at an image level. For many people, the Pixel 2’s result is good enough. Especially for a device you have on you at all times that requires just one button press to take a well exposed, focused photo.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/4673sec 4.459mm ISO 62

Compared to the full-frame F1.8 previous shot, for many people this result will be good enough. Especially for a one button-press device you always have on you. Just be careful: don’t pixel peep.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/168sec 6.6mm ISO 20

The iPhone’s result is smudgier with more artifacts around the hair, but the blur and colors are quite pleasing.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/252sec 4.459mm ISO 51

Compared to the iPhone 8 Plus shot of this same scene, the Pixel 2 retains far more detail than the iPhone shot. This is likely due to its HDR+ mode that is always using multi-image averaging, therefore requiring less noise reduction. The iPhone shot (next) in comparison looks like it’s had a lot of noise reduction applied to it, at the cost of detail.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/120sec 6.6mm ISO 160

The smaller aperture on the iPhone combined with the less (or none at all) multi-frame image averaging in Portrait mode than the Pixel 2’s 9 shots means the iPhone 8 Plus uses more noise reduction than the Pixel 2. The result: a far smudgier image under the same (yet bright) conditions with far less detail.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/17sec 4.459mm ISO 413

In low light, HDR+ on the Pixel 2 ensures decent noise levels by aligning and averaging multiple images.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 8 Plus
F2.8 1/60sec 6.6mm ISO 1250

The combination of F2.8 and the requirement of 1/60s to avoid camera shake (no OIS on the telephoto lens), and possibly not as advanced multi-frame noise averaging as the Pixel 2 leaves a lot to be desired in low-light portraits on the iPhone.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone 5c
F2.4 1/20sec 4.12mm ISO 50

This is in here to remind us of how far smartphone cameras have come. Compare this iPhone 5c image to the Pixel 2 image (next)…

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/120sec 4.459mm ISO 215

Indoors, but only what should be blurred is blurred! The subject is sharp and in focus, with a blurred background, thanks to a fast shutter speed, HDR+ multi-image averaging with alignment so not much noise reduction is required, and a proper depth map to gradually blur subjects further from the focus plane.

And having this sort of a camera in your pocket at all times means you can capture fleeting moments like when your daughter doesn’t want you to leave for work.

Imagine what’s to come…

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

iPhone X
F2.4 1/60s ISO 320

We’ll leave you with one final comparison to whet your appetite for our next shootout: the iPhone X vs. Pixel 2. This is an iPhone X shot and it’s immediately obvious that the camera on the X does a better job at ‘cutting around’ hair, people and objects than the 8 Plus. Our best guess as to why is that perhaps it generates a higher resolution depth map, but that’s pure speculation. It’s repeatably better, though, at making heads look less cut out from the background.

Compared to the 8 Plus, OIS and F2.4 (compared to F2.8) on the telephoto lens both help Portrait mode on the X. Compared to the Pixel 2 shot of the same scene (next slide), the out-of-focus highlights are rendered more specular, and the colors are more pleasing.

Portrait mode shootout: iPhone 8 Plus vs Google Pixel 2

Pixel 2 XL
F1.8 1/60sec ISO 233

The Google Pixel 2 XL shot of the same scene results in a far more candid portrait. Not only is the image sharper with more detail than the similar iPhone X shot, it’s closer to the shot I wanted. I was able to capture this fleeting hug instantaneously due to the fast autofocus. The previous iPhone X shot looks more posed and less candid because inside the Apple Store here, lighting was dim enough that the iPhone X was often slower at acquiring focus.

To our knowledge, Apple’s ‘Dual PDAF’ technology only dedicates roughly ~4% of its sensor’s pixels to AF. The Pixel 2’s Dual Pixel AF technology uses most of its sensor for AF, pixel binning to read out a low resolution, but also low noise, set of ‘left-looking’ vs ‘right-looking’ images. The 9-frame HDR+ buffer also helps reduce the noise for these sets of images, making autofocus in challenging situations vastly superior to any other smartphone we’ve tested.

The colors, on the other hand, leave a lot to be desired, with greenish skintones. The out-of-focus highlights are also not as specular as the iPhone’s result.

Stay tuned for an in-depth shootout of the Pixel 2 vs. the iPhone X…

Articles: Digital Photography Review (dpreview.com)

 
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Gear of the Year 2017 – Allison’s choice: Google’s HDR+ mode

16 Nov

I was told. And I believed. But I didn’t quite understand how good Google’s Auto HDR+ mode is. After shooting with the Pixel 2 in some very challenging lighting conditions, I’m a believer.

Google’s HDR+ mode is really, really good. And I’m prepared to defend it as my Gear of the Year.

Like I said, I was told. Our own Lars Rehm was impressed with Auto HDR+ in his Google Pixel XL review of last year. In his words: “the Pixel XL is capable of capturing decent smartphone image quality in its standard mode but the device really comes into its own when HDR+ is activated… The Pixel camera is capable of capturing usable images in light conditions that not too long ago some DSLRs would have struggled with.”

So heading out with the Pixel 2 in hand, I knew that was a strong suit of the camera. I was looking forward to testing it on some challenging scenes. Things didn’t look too promising though as the day started off pretty miserably.

The afternoon forecast looked better, but any Seattlite can tell you there are no guarantees in October. I figured I had a day of dull, flat lighting ahead of me that I’d have to get creative with. I was happily proved wrong.

The clouds started to thin out mid-afternoon. On a long walk from the bus toward Gas Works Park, I came across this row of colorful townhouses. The sun was behind them, and I snapped a photo that looked like a total loss as I composed it on the screen – the houses too dark and lost in the shadows. I didn’t want to blow out the sky to get those details in the houses, so I just took what I figured was a dud of a photo and moved on. So what I saw on my computer screen later was a total surprise to me: a balanced, if somewhat dark exposure, capturing the houses and the sky behind them.

Am I going to print this one, frame it and put it on the wall? No. But I’m impressed that it’s a usable photo, and it took no knowledge of exposure or post-processing to get it.

Gas Works used to be a ‘gasification’ plant owned by the Seattle Gas Light company and was converted into a park in the mid-70’s. Some of the industrial structures remain, monuments to a distant past surrounded now by green parkland and frequented by young families with dogs and weed-vaping tech bros alike. On a sunny afternoon in October it was, both literally and figuratively, lit.

I was convinced my photos were not turning out, but I kept taking them anyway. It’ll just be a deep shadows, blue sky kind of look, I thought. Little did I know that the Pixel 2 was outsmarting me every step of the way.

Back at my desk with the final photos in front of me, I was genuinely impressed by the Pixel 2. Did it do anything that I couldn’t with a Raw file and about 30 seconds of post processing? Heck no. But the point is that this is the new normal for a lot of people who take pictures and have no interest in pulling shadows in Photoshop. They will point their cameras at high contrast scenes like these and come away with the photos they saw in their heads. If you ask me, it’s just one more reason why smartphones will topple the mighty entry-level DSLR.

Apple’s catching on too. HDR Auto is enabled by default in new iPhones and veteran photographer/iPhone user Jeff Carlson is also impressed by how the 8 Plus handles high contrast scenes.

While smartphone manufacturers have been increasingly implementing HDR as an always-on-by-default feature, they’ve also been making these modes smarter and the effect more aggressive. What previously took technical know-how, dedicated software, and multiple exposures is now happening with one click of a virtual shutter button, and it’s going to keep getting better.

Articles: Digital Photography Review (dpreview.com)

 
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How to Shoot in Manual Mode Cheat Sheet for Beginners

16 Nov

The “Manual Photography Cheat Sheet-Reloaded” by The London School of Photography is a clean-cut, visual way of showing you how to step-up your photography game from automatic to manual shooting. Not only does shooting in Manual Mode enable you to produce sharp well-composed imagery – but you’ll also gain a stronger understanding of the inner workings of your camera and just how all those curious settings work in synch with each other.

How to Shoot in Manual Mode Cheat Sheet for Beginners

By shooting in Manual Mode you have full control of your shutter speed, ISO, and aperture, among an array of other settings that can further fine-tune your images. Manually controlling the aperture, for example, can help you achieve those beautiful portraits with blurred bokeh backgrounds. It’s also highly useful for changing shutter speeds, enabling you to achieve amazing shots of those fast-moving subjects like cars or cyclists in crystal clear motion without sacrificing quality.

You may often find yourself in a tricky lighting situation where everything appears far too dark, too light, or very grainy. Unfortunately, automatic mode can’t always hack these extreme conditions and often activates your camera’s flash at the smallest hint of darkness (making some photos appear positively awful). This is where learning to shoot in Manual Mode can be a lifesaver.

ISO

One of the most talked about settings on a camera is the ISO; a numerical value on your camera that controls light sensitivity. Your camera’s ISO allows you to adjust its light-sensitivity and allows it to pick up more light. Or on the flip side, to reduce your exposure on those bright sunny days for a well-balanced result.

I highly encourage experimenting with different lighting conditions to find your ideal ISO. But be wary of making your ISO too high in dark conditions as this will increase the amount of noise in your final images.

Aperture

Another common term you may have come across is aperture. This is essentially an opening in the lens that affects your exposure. It is also responsible for controlling the depth of field.

Generally, the lower the number (or f-stop), the larger the opening of the lens will be which will result in less depth of field – ideal for those blurry backgrounds. On the other hand, the higher your aperture the sharper the background will be – making it great for capturing all the tiny details in your scene (great for landscapes).

Shutter Speed

How to Shoot in Manual Mode Cheat Sheet for Beginners

Shutter speed is another key player that determines your image’s final outcome. It is essentially the exposure time of the camera’s inner shutter that stays open to allow light to enter and hit the sensor.

Generally, if you’re after blurred shots that illustrate an object’s motion (for example a racing car or cyclist) then a slow shutter speed will keep the shutter open for longer, allowing for a longer exposure time. A faster shutter speed, however, is perfect for a pristine action shot with no motion blurs.

White Balance

Another setting on your camera which also directly affects your images is your White Balance (WB). The process of setting your White Balance involves removing unrealistic color casts and ultimately using a setting that produces more naturally toned images.

It is especially useful in removing harsh yellow tones or redness on the skin. Alternatively, White Balance can be used in unconventional ways to refine your photographic style. For example, for edgier photos, the Tungsten White Balance preset can be used in an overcast setting to produce blue hues and enhance contrasts. With this in mind, it’s highly beneficial to experiment with the various White Balance modes to achieve your desired results.

Things to note for shooting in Manual Mode

Keep in mind that when you’re ready to shoot in Manual Mode your settings will not adjust to your shooting conditions. You have to adjust them, manually. By keeping this in mind you’ll ensure your exposures are consistent throughout a shoot. The process of changing your settings may sound tedious at first, but it will actually ensure your images are consistent.

This is what shooting in an automatic mode lacks, as it calculates how much light is being measured through your camera’s light meter. As good as this might sound to you, you’ll probably find that as you adjust your shooting position, the subject moves, or the lighting condition changes to overcast – you’ll eventually have a set of very inconsistently exposed images.

Other shooting modes

camera modes - How to Shoot in Manual Mode Cheat Sheet for Beginners

As much as I love to shoot manual, don’t forget about the other letters on your mode dial that are sparking your curiosity. In fact, I even recommend shooting in these semi-automatic modes as practice to help you understand exposure compensation.

  • Program mode (P) is a great transition mode when stepping out of the auto-shooting world. It governs similar shooting to auto but allows you to adjust the exposure by controlling compensation through a dial. If any of your photos appear dark, then using this simple feature can increase the brightness.
  • Aperture priority is another great transitional mode to shoot in that allows you control over aperture as well as the ISO. It gives you control over your depth of field as well as the exposure compensation to control brightness.

If you think you’ve mastered these settings then you’re ready to go manual!

Finally

In addition to camera settings, we highly recommend the following tips that will further enhance your experience of migrating to manual shooting; such as the use of a tripod, golden hours, and the top photographic golden rules to keep in mind for capturing stunning imagery time and time again.

How to Shoot in Manual Mode Cheat Sheet for Beginners

Download the full cheat sheet infographic all-in-one here.

The post How to Shoot in Manual Mode Cheat Sheet for Beginners by Antonio Leanza appeared first on Digital Photography School.


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Real-world test: Long exposures with Panasonic G9’s high-res mode

12 Nov
Out-of-camera 80MP JPEG using the Panasonic G9’s high-resolution mode. Lots of detail, and some strange-looking pedestrians.
Panasonic Leica DG 12-60mm F2.8-4 | ISO 200 | 1/500 sec | F4

New to Panasonic’s G9 flagship is a high-resolution mode, which shifts the sensor by half-pixel increments eight times, and generates an 80MP final image. As with similar technologies from Ricoh and Olympus, it’s not necessarily recommended for scenes with moving subjects in them. But we wanted to see if we could make it work.

You’ll notice in the above image, the pedestrians are sharply ‘ghosted’ in the foreground; this is due (obviously) to the eight exposures being taken, but also partially the 1/500 sec shutter speed. What if we purposely chose a slower speed, so that they would blur more naturally into each other?

These are only initial findings on a gray Seattle day, but we’ve got some interesting results.

Panasonic Leica DG 8-18mm F2.8-4 | ISO 200 | 1/30 sec | F8

For this situation, in order to get a proper exposure without either an ND filter or stopping down to diffraction-inducing levels, I figured I’d give 1/30 of a second a try. As you can see, there’s a little ‘repetition’ around portions of the pedestrians in the foreground and across the street, and while there’s lots of detail in the scene, you may want to just use the normal 20MP file for this one.

What if we go with a little longer of a shutter speed, though?

Panasonic Leica DG 8-18mm F2.8-4 | ISO 200 | 1/8 sec | F8

This looks to our eyes to exhibit some improvement. We overall found that a shutter speed between 1/4 sec and 1/8 sec gave a reasonably natural look to the average pedestrian in motion – of course, for faster and slower moving objects, you’ll have to adjust accordingly. Do take note, though, that there are some interesting colorful streaks in our moving subjects, and a reduction of resolution in static objects that can be seen behind them.

If you’re thinking about an even slower shutter speed, once you get down to 1/2 sec or so, pedestrians largely just disappear from your frame, leaving barely a shadow for you to notice. Of course, this could be an advantage if you’re wanting to eliminate people from your photos, without necessarily needing an ND filter and a 30-second exposure.

There were some people on these stairs, I promise.
Panasonic Leica DG 8-18mm F2.8-4 | ISO 200 | 1/2 sec | F8

We tried an even longer exposure to see if we could get the motion artifacts to ‘disappear’ with subjects moving fast enough across the scene, but we still could see some – check out the car taillights and the ground surrounding them in the below image. The rest of the image, predictably, shows good detail, but once you start inspecting the areas of motion too closely, the image starts to look a little strange. That said – you’d probably have to have someone point it out to you to really notice it in real life.

Panasonic Leica DG 12-60mm F2.8-4 | ISO 200 | 1.3 sec | F4

In any case, the high res mode on the G9 is something we want to continue to look into as we progress with our review. Raw support is coming shortly, and we’re looking forward to examining the Raw files from both real-world shooting as well as our test scene.

For now, we’ve added these images and their corresponding ‘normal’ 20MP equivalents onto the end of our existing image gallery for you to inspect.

Scroll to the end of our sample gallery to see our updated high res images

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Google rolls out ‘Saturated’ mode to address Pixel 2 XL display issues

10 Nov

The Google Pixel 2 might sport one of the best smartphone cameras around, but when it comes to the display—particularly on the larger XL—model, Google has had nothing but trouble. Reports of everything from burn-in, to blue tint off-axis, to ‘dull’ colors have left the tech giant playing catch up, and today it finally … well… caught up. Or at least it tried.

A promised software update released on Tuesday (and rolling out to all users by the end of the week) addresses the issue of burn-in with some minor tweaks, and adds three total color saturation modes under the phone’s Display settings to hopefully quiet down the complaints about ‘dull’ colors.

Here’s a quick summary of the update in Google’s own words:

This update includes some of the enhancements we posted about on October 26, such as the new Saturated color mode for Pixel 2 and Pixel 2 XL, a fix for the faint clicking noise heard in some Pixel 2s, and other bug and security updates. As we mentioned in our deeper dive, this update also brings planned UI changes which extend the life of the OLED display, including a fade out of the navigation buttons at the bottom of the screen and an update to maximum brightness.

According to Android Central, the updated saturation settings come in three flavors: Natural, Boosted, and Saturated. Natural should provide the most accurate color reproduction; Boosted takes the place of the “Vivid Colors” setting previously available, which boosted saturation by 10%; and, finally, Saturated will put the display in an “unmanaged configuration” that will make colors “more saturated and vibrant, but less accurate,” according to Google’s deep dive on the topic.

Unfortunately, this mode throws away one of the most important things about Android Oreo: color management. In ‘Saturated’ mode, all apps, images and video will first render to sRGB (for now) and then be stretched to the display’s wider color gamut.

This will make for inaccurate colors across the two devices, but there is hope for us color nerds. As Seang Chau, VP of Engineering at Google, says in his blog post: due to color management under the hood in the new OS, “an Android app developer can now make use of the wider Display P3 color gamut precisely for a wider range of colors. Google apps will take advantage of wide colors in the future.” We’re hoping this means that future apps will render either to P3 or straight to a display profile provided by Google, which would allow for saturated colors when appropriate, but not at the cost of accuracy.

Finally, no comment was made on the poor viewing angle of the XL model that introduces a strong blue-tint off-axis (see picture above of the Pixel 2 XL vs the original XL). This can make photos with warmer tones look even more desaturated by shifting toward blue. But while Google was able to address some of its display complaints this week, this seems like a hardware problem that will be difficult to fix via software.

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How to Use Soft Light Blend Mode in Photoshop to Improve Exposure and Contrast

19 Oct

Do you have an overexposed sunny side and an underexposed shadow on the other side of your image? Or maybe a well-exposed photo that needs more vibrancy? There’s a tool so versatile that can help you fix any of these problems and more: the Soft Light Blend Mode.

What are Layers?

Imagine your photo as a printed one. Then you take a sheet of acetate and draw on it. Then you take another sheet and you put it on top of the others and obscure a part of it; and so on, and so forward. Each acetate sheet is a layer and you can make as many alterations as you want on top of your original this way.

To create layers in Photoshop you need to go to Menu > Layers > New. A pop-up window will appear where you can name your layer, choose the color, the blending mode and the opacity. When you click OK the new layer will appear on the Layers panel window on top of the background, which is the original image.

Layers - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

What is the Blend Mode?

The default setting of a new layer is normal blending mode. This covers the background or the layer underneath. However, Photoshop gives you the option of choosing a different Blend Mode, which changes the way your edit affects the pixels. You can change it in the pop-up window of the new layer.

Blending Modes - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

In the case of the Soft Light blending mode it is similar to using the dodge or burn tool. In other words, every color that is lighter than 50% grey will get even lighter, like it would if you shine a soft spotlight to it. In the same way, every color darker than 50% grey will get even darker. However it will never reach pure black.

So, why not use dodge and burn instead?

First of all, when you work in layers you don’t lose any information. You can always discard the layer and start over because there is no damage to the original image.

With layers, you can change the opacity or transparency of each one, which allows you to control how evident your edit is in the final image. You will find the opacity tool on the Layers panel with a slider that goes from 0 to 100 %.

Note that there is another slider next to it called Fill. There are 8 blending modes in which these two sliders make a difference, however, Soft Light is not part of these “special 8” so the Fill opacity and Standard opacity have the same result when using this Blend Mode.

Opacity - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

Another advantage is that you can change the blending mode of each of the layers. In this article, we are exploring the use of Soft Blend, however, each mode offers different possibilities. One blending mode can have different uses, here are three of them.

3 ways to use Soft Light Blending Mode

1. Add punch to your image

Increase the contrast and saturation to have more vivid colors and give a punch to your image. You can do this by duplicating the background layer: Menu > Layer > Duplicate Layer and changing the blending mode from normal to Soft Light. Finally adjust the opacity until you are happy with the result.

Duplicate Layer - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

BeforeSoftLight - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

AfterSoftLight - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

2. Gradient tool to balance the lighting

If you have an image that is underexposed on one side and overexposed in the other you can easily even it out with a Soft Light blend layer. First go to Menu > Layer > New Layer. Pick the Gradient tool and draw a line from the brightest side to the darkest one. The gradient will look like this:

Gradient How to Use Soft Light Blend Mode to Improve Exposure and Contrast

Then change the layer blending mode to Soft Light and lower the opacity to find the best results.

Before Gradient - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

Before gradient

After Gradient - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

After gradient

3. Dodging and burning with a Soft Light layer

The past workflows altered the entire image, however, if you need to do a more precise job you can also do that using Soft Light. First, add a new layer with Soft Light blending mode like you did in the previous procedure. Only this time instead of the gradient tool, you are going to use the brush tool. When you select it you can choose the size of the brush on the top menu and the color on the bottom.

Brush How to Use Soft Light Blend Mode to Improve Exposure and Contrast

If you paint with black you will darken the image:

Darken - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

Painting with white will lighten certain areas, and with different shades of grey, you can also control tones of your image.

Painting - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

Keep going until you are happy with the contrast and exposure of your image.

Before Painting - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

After Painting - How to Use Soft Light Blend Mode to Improve Exposure and Contrast

Conclusion

Now you know that blending modes have a lot of potential, so keep exploring. How do you use Soft Light Blend Mode? Please share your ideas and tips in the comments below.

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How to Use Bulb Mode for Long Exposure Photography

09 Oct

Most DSLR and mirrorless cameras have a feature called Bulb Mode. If you’re like me, you probably saw that in one of the menus or buttons when you first got your camera and have promptly ignored it ever since. Even the name sounds weird, and at first glance, you might think it has more to do gardening than photography. But it’s actually a very useful option that can unlock all sorts of creative possibilities with your camera.

Learning to use Bulb Mode does take a bit of practice though, and it helps to understand how it got its strange name in the first place. But I think you’ll find that the payoff is worth your time.

How to Use Bulb Mode for Long Exposure Photography

Lightning shot using Bulb Mode.

History Lesson

Way back in the early days of photography, long before digital image sensors existed, and autofocusing lenses were little more than science fiction, the act of taking a picture still worked in many ways like it does today. Hidden inside the sealed innards of a camera was a piece of light-sensitive film onto which an image would be projected when the camera’s shutter was opened, thus letting light pass through the lens and onto the film.

It’s the same principle that DSLRs use today. The only major change is how the shutter is constructed and the manner in which the timing is controlled. A hundred years ago there was no such thing as computer-powered cameras or precise mechanical actuators that could open the shutter for a long period of time (typically longer than one second). Instead, the photographer held a small bulb in his or her hand which was attached to the camera’s shutter by a piece of tubing.

Squeezing the bulb opened the camera shutter and releasing the bulb closed it, which meant the timing of the shutter was entirely up to the individual taking the photo. As long as the bulb was squeezed, the shutter would stay open. This method continued to be used on cameras for years to come, and it’s even possible to find bulb-style shutter releases for cameras today.

In short, think of Bulb Mode as Time Travel Mode. It basically makes your camera function like a camera from 100 years ago, when you had to squeeze a bulb to open the shutter, and then release the bulb to close it. The only major difference is that unless you literally have a bulb-style shutter release like the one pictured below, you will press the shutter button to open the shutter and release your finger to close it. Pretty neat, isn’t it?

How to Use Bulb Mode for Long Exposure Photography

Squeeze the bulb to open the shutter on this Pentax 35mm film camera. Release the bulb to close the shutter. Image courtesy of Wikimedia Commons.

Bulb Mode Today

Most modern cameras allow you to set the shutter speed anywhere from 1/4000th of a second and 30 seconds, which gives you an incredible range of creative photographic possibilities. These shutter speeds work in tandem with a camera’s light meter, as well as the ISO and lens aperture, to help you get properly-exposed images with little to no fuss or hassle. With that in mind, the idea of squeezing a bulb to keep the shutter open seems more than a bit anachronistic. Why would anyone want to hold the shutter open manually when you can just dial in a preset value for the shutter speed and not worry about anything else?

The benefit of Bulb Mode is that it lets you keep the shutter open for as long as you want. The timing is not specified by you, the camera, or anything else which means it’s entirely your decision whether to use a fast, slow or extremely slow shutter speed. Using Bulb Mode, it’s possible to leave your shutter open for one, five, 10 minutes or even longer. The only limitation is your camera’s battery and your own degree of patience, which opens the door for some amazing photographic opportunities.

How to Use Bulb Mode for Long Exposure Photography

Finding Bulb Mode

Shooting Mode Dial

Canon mode dial, B is Bulb.

The first step in using Bulb Mode involves figuring out how to access it on your camera, especially if you did not have even known it existed and have never tried to look for it. Because Bulb Mode involves controlling the shutter you might think that you need to first put your camera in Shutter Priority mode, but that’s generally not the case.

For most cameras, you actually need to use Manual Mode and then set your shutter speed to as low as it can go. You will likely see decreasing speeds of 5 seconds (your display may show that as 5″), 10 seconds, and so on, all the way down to 30 seconds at which point one more click of the dial will put your camera into Bulb Mode. If this doesn’t work for you it’s possible your camera simply doesn’t have Bulb Mode (most DSLRs and mirrorless cameras do have it, on some Canons, it is on the Mode dial as B). If you really aren’t certain just Google the brand and the model of your camera along with the words “bulb mode,” which will likely turn up some useful results.

How to Use Bulb Mode for Long Exposure Photography

Instead of showing a shutter speed along with a light meter, my camera’s LCD screen now displays the word “bulb” to indicate that I have entered Bulb Mode.

Understanding Bulb Mode

Once your camera is in Bulb Mode a couple of things go a little haywire and you may think your camera is broken. Before you send it in for service, just know that everything is fine…but different. Right away you’ll notice that your camera’s light meter no longer works, and there is no indication of what exposure settings you should be using to get a properly-exposed image.

This happens because your camera has no idea how long you want to leave your shutter open, and without that information, it doesn’t know whether to indicate if the final image will be overexposed, underexposed, or just right. This can make Bulb Mode positively primitive territory, and if you have ever wanted to know what your photographic forebears had to deal with when taking pictures 100 years ago you now know firsthand.

The best way to figure out which settings to use is to simply start experimenting. The more you use Bulb Mode you will start to figure out what settings like aperture and ISO might be appropriate given the scene you are photographing. However, there are some general tips that can be applied, which I will cover in the next section.

Holding the button

The other weird thing about Bulb Mode, which directly hearkens back to the earliest days of photography, is the manner by which the shutter is controlled. To open the shutter you press the shutter button (a sentence which is most likely eliciting rolled eyes due to how obvious it sounds). However, there’s a catch.

The shutter stays open only while your finger is pressing the shutter button. It’s just like squeezing a pneumatic bulb in the early days of photography. As you might guess by now, the way to close the shutter is to take your finger off the button. It’s a strange feeling, and if you have a DSLR handy I invite you to give it a try right now. Go get your camera, put it in Manual, spin the control dial until you’re in Bulb Mode, and take a picture. I’ll wait.

How to Use Bulb Mode for Long Exposure Photography

Using Bulb Mode

Did you snap a photo? I bet it felt kind of strange to have the shutter open and close only when you pressed and then released, your finger from the button. This, of course, brings up the next logical question of how do you actually use Bulb Mode to get good pictures? While each person will use it in their own way, there are a couple of guidelines to think about if you want to get good results.

Low light

Bulb Mode is most useful when you have little to no ambient light. It is almost worthless in daylight or in a well-lit room (unless of course, you are using really good ND filters to block some of the light) The best time to try it is at night when everything is pitch black except what you are hoping to photograph.

Setting up to use Bulb Mode

It’s important to keep your camera steady with a good tripod. You are typically dealing with really long exposures, and even the vibration from your finger pressing the shutter button can affect the resulting image. So the sturdier your tripod is, the better your images will turn out. If you have a cable release or some kind of remote shutter trigger for your camera, now is a great time to use it. Make sure you have one that either locks or counts the exposure for you (if you’re using the small wireless one that camera with your camera, you may need to click it once to open the shutter in Bulb Mode and click it again to close the shutter).

Note: You cannot use the 2-second self-timer in conjunction with Bulb Mode, it will not work.

Finally, try using a small aperture of f/8 or f/11 and a low ISO setting like 100 or 200 since the shutter speed is the independent variable in most Bulb Mode photography. This isn’t a requirement, but depending on your subject you might need a wider aperture or higher ISO, particularly if you want to shoot images of stars or capture star trails or other astrophotography phenomena.

How to Use Bulb Mode for Long Exposure Photography

I was able to capture a bolt of lightning by holding the shutter open, and the long exposure also shows movement in the clouds too.

When to use Bulb Mode

Now it’s time to experiment and really have fun with Bulb Mode. Everyone will use it in a different way, but here are a couple of ideas to get you started.

  • The next time a thunderstorm rolls in, use Bulb Mode to capture lightning strikes. The longer you leave the shutter open, the more lightning bolts you may be able to capture.
  • Try light painting, and experiment with using different kinds of light on familiar subjects you might already have just laying around.
  • Set up your tripod next to a road and shoot light trails as traffic passes by at the night.
  • For a variation on light trails, get a friend have some fun with fire spinning. Note that safety must always come first in these situations, so be sure to keep yourselves, your gear, and the environment around you safe from damage. The best place is a beach with no one around.
  • You don’t need fireworks either, and you can get great results with different sources of light from flashlights to sparklers to twirling glow sticks.
How to Use Bulb Mode for Long Exposure Photography

Using a long exposure helped me turn this ordinary jar of pasta into a surreal glowing work of art.

Conclusion

These ideas are just scratching the surface of what Bulb Mode can do. The best way to learn is to try it for yourself. If you have any particular tips for using Bulb Mode that you think others would enjoy, or some ideas to try that I didn’t mention here, please leave your thoughts in the comments below!

The post How to Use Bulb Mode for Long Exposure Photography by Simon Ringsmuth appeared first on Digital Photography School.


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Google unveils Pixel 2 phones: Adds OIS, Dual Pixel powered Portrait Mode and more

05 Oct

Ever since the iPhone 8 Plus and iPhone X were announced, we’ve been waiting for Google’s response. When the original Google Pixel came out, it quickly became one of the most raved about smartphone cameras in the world… would the Pixel 2 follow suit? The short answer, at least according to Google, is yes.

Just this morning, we sat down in the SF Jazz Center and, after an hour of other updates, Google finally unveiled the 5-inch Pixel 2 and 6-inch Pixel 2 XL.

The new phones house a 12.2MP sensor with 1.4um pixels, Dual Pixel phase detect autofocus and an F1.8 lens on the back, and an 8MP camera with 1.4um pixels, fixed focus and an F2.7 lens on the front. The newer 1/2.55″ sensor is smaller than the previous-gen’s 1/2.3″ sensor, but the brighter aperture nearly perfectly compensates.* Video specs for the rear camera max out at 4K 30fps (sorry, no 4K/60p like the new iPhones) while the front camera can do up to 1080p at 30fps. The camera units are now raised above the back glass surface, which remedies the nasty flare issues the previous Pixels had.

As we hoped, the whole phone is encased in an IP67 water and dust resistant aluminum unibody, and is powered by the latest and greatest Qualcomm Snapdragon 835 processor.

More impressive than the base specs are how Google uses its hardware in concert with software and machine learning technology to deliver a better photography and video experience.

Instead of opting for a dual camera on the back of the phone, the Google Pixel 2 and Pixel 2 XL uses just one camera, and combines this with Dual Pixel technology (split left/right pixels) and computational photography to create the now-ubiquitous fake bokeh Portrait Mode effect. And since stabilization is incredibly important, they’ve worked out how to use both optical and electronic image stabilization at the same time when you’re shooting video, which should deliver incredibly smooth footage. (more on that from San Francisco shortly…)

Unfortunately, in our brief time with the cameras so far, we discovered that Portrait mode is still not rendered live on either camera… it seems there are downsides to using a single camera instead of a dual cam setup, or in Google’s (we think correct) choice to use a more computationally intensive ‘lens’ blur as opposed to the more Gaussian (smooth) blur that Apple opts for.

Finally, no modern smartphone is complete until you look at the display your photos and videos will be viewed on.

Unfortunately, Google made no mention of color management or proper display profiles—which caused issues with the previous Pixel smartphones—but the new AMOLED (for the 5-inch model) and pOLED (for the 6-inch model) displays are wide-gamut. The Pixel 2 claims 93% DCI-P3 coverage while the Pixel 2 XL claims full 100% coverage of the same standard.

We bring this up because last year’s Pixel phones also offered a wide color gamut and high contrast ratio, thanks to their OLED display technology, but often displayed wildly inaccurate colors due to the lack of color management. It’s still possible the displays will come calibrated properly for the P3 or sRGB color spaces, but without any explicit mention of calibrated display modes that the OS automatically switches between based on the color space of the content (as Apple claims to do), we remain skeptical.

The lack of any talk of HDR display of video or photos was also a disappointment after the announcement of iPhone X’s support for HDR10 and Dolby Vision video, and HDR display of photos. The latter should make HDR photos pop on the bright contrasty OLED display of the iPhone X, rather than give them the flat tonemapped look we’re often used to. It seems Google has chosen to go the traditional method of compressing a high contrast scene into a flatter image, rather than take advantage of the HDR display capabilities of its OLED display.

We’re currently spending some time with the Google Pixel 2 and Pixel 2 XL in person today at the Jazz Center, so stay tuned for our hands-on impressions as the designated photography nerds at this event.

In the meantime, you can find out more about either of these phones on the Google Store, check out our Live Blog to see what we were thinking as the announcements were going up, or argue about your Apple vs Google allegiance in the comments.


* At least for low light performance, but perhaps not dynamic range. The discussion is complicated by the use of computational photography, of course, so it’s difficult to speculate on the overall impact of the smaller sensor / brighter aperture.

Articles: Digital Photography Review (dpreview.com)

 
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