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Posts Tagged ‘wider’

DJI’s new Pocket 2 three-axis-stabilized mini camera offers larger sensor, wider lens and more

21 Oct

DJI has announced the release of its new DJI Pocket 2, a second-generation three-axis mini camera.

The updated camera drops the Osmo nomenclature its predecessor bore and improves its performance across the board. Despite keeping its compact size, weighing just 117g (4.2oz), the Pocket 2 has a larger sensor and wider lens than the Osmo Pocket, which DJI claims has dramatically improve image quality for both photos and video.

The new 1/1.7” sensor (Osmo Pocket had a 1/2.3” sensor) works in tandem with a new 20mm (equivalent) F1.8 lens to capture 16MP photos in standard mode and up to 64MP images in high-resolution mode. The Pocket 2 can record 4K video at up to 60fps at a 100Mbps bitrate. DJI has added HDR recording and the device now offers up to 8x zoom using the 64MP high-resolution mode or 4x lossless zoom when shooting at 16MP or in 1080p.

DJI has also improved the focus system, which should make it easily to track moving subjects faster and more accurately than with the Osmo Mobile. The Hybrid 2.0 AF feature uses a combination of contrast and phase detection to deliver these performance improvements.

DJI Matrix Stereo also improves upon one of the weakest points of the Osmo Mobile—audio. The new audio system uses an array of four microphones to capture what DJI calls an ‘immersive audio experience.’ DJI has added a number of audio features, including Directional Audio, SoundTrack and Audio Zoom. Below is a description of the new features straight from DJI:

’Directional Audio enhances sound recording from those microphones to pick up as much detail as possible, with SoundTrack adjusting the audio based on where the camera is facing, while Audio Zoom narrows the sound field when zooming the camera in. To further filter out unwanted background sounds, an optional wind noise reduction helps keep the audio clean in outdoor settings.’

As with nearly all of DJI’s products, there’s a handful of pre-programmed shooting modes included with the Pocket 2:

  • Pro Mode: Control advanced camera settings such as ISO, shutter speed, EV, and focus mode.
  • ActiveTrack 3.0: Select a subject and let DJI Pocket 2 keep it in the frame automatically.
  • Slow Motion: Capture the fast-moving world in slow motion with a max speed and resolution of 8x at 1080p.
  • Timelapse, Hyperlapse, Motionlapse: Speed up the world around you with the varying effects of three different time-lapse operations. Hyperlapse automatically integrates Electronic Image Stabilization (EIS) for added smoothness. Users have the ability to save individual images separately, record in RAW format, and use ActiveTrack 3.0.
  • Panoramas:
    • 180° Pano: Captures four photos for sweeping landscape images.
    • 3×3 Pano: Merges nine images for a wide and detailed view.
  • Livestreaming: Livestream directly to Facebook, YouTube, or RTMP.
  • Story Mode: Preset camera movements, color profiles, and music make it easier to choose a template, record the moment, and share to social media instantly.

Other features include a new Fast Wake option that will instantly turn on the device so you don’t miss any action, a Drop Aware function that will ‘take preventative measures when it senses the gimbal falling’ and a Pause Recording feature that will quickly pause video recordings.

With new hardware comes new accessories, including a charging case, wireless microphone set, waterproof housing, a more compact control wheel, an extension rod, a (more) wide-angle lens attachment, a wireless module and a smartphone support system. All of the above features and more can be controlled with the free DJI Mimo smartphone app, available on both Android and iOS.

The DJI Pocket 2 can be purchased in two configurations: the DJI Pocket 2 with the Mini Control Stick and Tripod mount for $ 349, or the DJI Pocket 2 Creator Combo, which includes the Mini Control Sitck, tripod mount, wide-angle lens attachment, wireless microphone with windscreen, the do-it-all handle and the micro tripod for $ 499. Units can be purchased through DJI’s online store and authorized DJI retailers.

Articles: Digital Photography Review (dpreview.com)

 
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Wider than wide: A landscape photographer’s thoughts on the Canon 11-24mm

06 May
The Canon EF 11-24mm F4L USM is a super wideangle zoom lens for Canon’s full-frame DSLRs, which can also be adapted for use on Sony Alpha a7 and a9-series full-frame mirrorless cameras.

Even though I’ve been writing for DPReview for over 4 years, I’ve never written any equipment reviews. And why should I? There are far better equipment experts, technical fanatics, pixel-peepers (I mean that in a good way!) and gear enthusiasts out there than me. My fields of expertise are different, and my writing consists mostly of photographic vision, composition, the philosophical aspects of photography and so on. I intend to stick to this line of writing, and for the most part, I’m happy to leave the equipment reviews to the experts.

That said, after shooting with the Canon 11-24mm F4L for a few months, it has proven to be such a game-changer that it has altered how I think about composition. And in a more general sense, it has changed my ability to take control over what is included in an image, and how these elements are arranged.

Goðafoss, Iceland at 13mm. The extra width allowed me to get closer to the edge and get a wider view while keeping all the elements I needed in the image, framing the waterfall, with enough space around them to avoid a crowded feel.

Canon EOS 5D Mark IV, Canon 11-24mm F4L
Nisi Filters 180mm ND + GND
F14, 13sec, ISO100

This will not be your regular gear review. I won’t be discussing sharpness (although trust me that this lens is very sharp), chromatic aberrations or barrel distortion. I will only be talking about composition, which is, in my opinion, the single most important ingredient to a successful photograph. I will present some images and explain what about the 11-24mm made them possible. I’ll also talk a bit about the downsides of this lens and the solutions to the problems it presents. 

So why? Why does a landscape photographer need an 11-24mm? Isn’t it just too darn wide? Is 11mm worth the size and the monstrous weight? Is it worth the hefty price tag? I have to admit that before shooting with it, I was in serious doubt. I was sure I’d leave it in the bag most of the time, taking it only on rare occasions when 16mm wasn’t wide enough. I thought that 16mm would be wide enough for 90% of my images, after all, I’ve been producing satisfactory shots until now – what good could a wider lens be?

I knew that when going wider, background subjects shrink significantly in size, which can hurt the composition. Moreover, in cases where 16mm wasn’t enough, I had a 14mm F2.8 which was excellent for night photography and for shooting in confined spaces. 

It turns out that I was wrong. The extra width proved to be extremely useful, much more than I had imagined. It allowed me to have much more control, to include more sky when I wanted to, to get closer to the foreground, to reveal more detail and create a greater sense of depth and more dramatic imagery. Let’s look at some examples.

An ice cave in Breiðamerkurjökull glacier, Iceland. Getting this composition in one shot with a narrower lens would have been impossible.

Canon EOS 5D Mark IV, Canon 11-24mm F4L
Focus stacked from 3 images at 11mm, F13, 15sec, ISO800.

The ice cave pictured above was magnificent, but it was also very cramped. I couldn’t walk upright in most of the spots I shot, and this stream was very small. The ice-crusted rock in the middle was tiny, and its details were so beautiful, I needed to get close in order to expose their intricacies. On the other hand, I needed to frame the different elements well, and in a balanced way that makes visual sense.

The cave’s ceiling is extremely important, since it’s the only subject of the frame which is part of the glacier, which basically IS the ice cave. It also contains wonderful melting patterns, and black, volcanic earth which gives extra texture and detail. 
On the bottom of the frame, there are two important elements: the ice-crusted rock in the middle of the stream, which is most definitely the centerpiece, but equally importantly the ice crusted banks on the bottom right. These serve to create the frame to the blurred water and to compositionally counterbalance the rock and the left-running stream.

In addition to the compositional aspect, I strongly feel that including all these elements serves to give the viewer a better sense of being in this incredible cave. This might be the strongest advantage of utilizing such a wide angle of view.

Without a super wide lens, I could still have included all of these elements. I could have achieved this in one of several ways.

Firstly, I could have moved back a little. This would indeed allow me to include all the different desired elements in the frame, but going backward would change the perspective significantly, shrinking the most important elements in the process, namely the ice crusted rock and the stream itself. That would hurt the composition a great deal.

Alternatively, I could have shot a panorama, using a tilt/shift lens or by moving the camera and lens. This would make the job much, much harder, since (a) it would require multiple stitching in addition to the already-challenging focus stacking and (b) shooting so close to the stream meant I constantly needed to wipe the lens dry, and the extra shooting time would mean much more wiping, Photoshop work and general headache.

The 11-24mm allowed me to shoot this as close to the rock as I needed to, in order to include all the detail I wanted to show while still framing the shot as I desired, all with only three shots to focus stack. I simply wouldn’t have been able to do that before I bought this lens. 

Let’s see another example from my Arctic trip earlier this year.

The amazing black and white sand patterns of Skagsanden Beach, Lofoten, Arctic Norway.

Canon EOS 5D Mark IV, Canon 11-24mm F4L
Nisi Filters 180mm ND + GND
Stacked from 4 images at 11mm, 0.8 sec, F13, ISO100

Again, this image would’ve been almost impossible without the 11-24mm, which allowed me to get very close and personal with the tree-like sand patterns, while being wide enough to shrink the background and include the whole mountain range in the frame. 

The Lofoten Islands are full of fjords with towering mountains rising out of them. Some mountains are so close to a water body, it’s extremely hard to include the entire thing in the frame without a truly wide lens. This is even more so when trying to include reflections.

Mount Stortinden reflecting in the calm Flakstad Fjord, Lofoten. I was standing about 1 km from this 850m tall mountain. Being so close, I couldn’t have included both the mountain and the reflection with a 16mm. It was easily done, however, with the 11-24mm.

Canon EOS 5D Mark IV, Canon 11-24mm F4L
Nisi Filters 180mm ND + GND
11mm, F11, 0.5 sec, ISO100

Last but not least, the 11-24 is an almost perfect tool for night photography. The maximum aperture of F4 is a limit, but then again, it’s easier having the foreground in focus at F4, plus the monstrous angle of view allows one to expose marginally longer without getting the stars or Northern Lights blurred.

Let’s see an example from an incredible night of Aurora in Lofoten. The super wide angle allowed me to include a huge chunk of the sky, showing the wonderful patterns and lines in addition to the mountains and the moving waves. I could also expose for 8 seconds, which is considered a bit long for this kind of strong Auroral activity. To be honest, the lights blew up a few seconds before I took this shot, and I should’ve exposed for less time, but the amount of blur is not a big issue and the Aurora is still well defined.

Beautiful Aurora in Skagsanden Beach, Lofoten, Arctic Norway.
Canon EOS 5D Mark IV
Canon 11-24mm F4L
11mm, F4, 8sec, ISO1600

Here are a few more examples of Aurora shot with the 11-24mm.

Stacked from 2 images at 11mm, F4, 8sec, ISO3200 Stacked from 2 images at 11mm, F4, 13sec, ISO3200
11mm, F4, 5sec, ISO1600 11mm, F4, 8sec, ISO3200

I hope you’re convinced of this lens’ advantages. What about the downsides?
For me, the greatest disadvantage is the inability to fit regular filters in front of the huge front element. I’m used to popping my 100mm system out of the bag and putting it in front of any lens. Not this one.

The only solution I currently know of which covers the whole width of this monster is the Nisi Filters 180mm system (proper disclosure: Nisi gave me the holder and some filters to try out). These filters are not cheap, but they are well made and have superb optical quality. The problem is that together with the mounting system, they are big and heavy, and don’t allow a photographer to be as spontaneous as with a 100mm system. I still like the system very much and I’ve achieved good images with it. If you’re into using filters with the 11-24, I highly recommend it.

As to the size, weight and price – simply put, it is what it is. If you need this type of lens, or if you can extract any type of value out of it, there is not much choice, is there? You need to weigh the advantages and the disadvantages and make up your own mind. You can also leave the lens at home if it’s not really necessary or if the weight is too much for a specific project (for example, on my recent Patagonia hiking trip, I chose not to lug it around due to the weight, and opted for the lighter 16-35mm). In my opinion, the answer is clear: if you’re an avid landscape photographer, don’t wait – get this lens, you won’t regret it.


Erez Marom is a professional nature photographer, photography guide and traveler based in Israel. You can follow Erez’s work on Instagram, Facebook and 500px, and subscribe to his mailing list for updates.

If you’d like to experience and shoot some of the most fascinating landscapes on earth with Erez as your guide, you’re welcome to take a look at his unique photography workshops around the world:

Land of Ice – Southern Iceland
Winter Paradise – Northern Iceland
Northern Spirits – The Lofoten Islands
Giants of the Andes and Fitz Roy Hiking Annex – Patagonia
Tales of Arctic Nights – Greenland
Saga of the Seas and The Far Reaches Annex – The Faroe Islands
Desert Storm – Namibia

Selected Articles by Erez Marom:

  • Parallelism in Landscape Photography
  • Behind the Shot: Dark Matter
  • Mountain Magic: Shooting in the Lofoten Islands
  • Behind the Shot: Nautilus
  • Behind the Shot: Lost in Space
  • Behind the Shot: Spot the Shark
  • Quick Look: The Art of the Unforeground
  • Whatever it Doesn’t Take
  • Winds of Change: Shooting changing landscapes
  • On the Importance of Naming Images
  • On Causality in Landscape Photography

Articles: Digital Photography Review (dpreview.com)

 
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Omnivision introduces new sensors for mobile devices with wider DR and lower noise

11 Nov

Chinese sensor manufacturer OmniVision Technologies has announced four new image sensors for smartphones that feature improved dynamic range and noise performance. The 16MP and 20MP sensors offer higher full-well capacity which allows pixels to collect more charge before clipping: increasing dynamic range.

A new structure allows pixels to convert more of the light captured into electrical charge, resulting in a claimed 12.5% improvement in sensitivity, giving better low light performance. Better separation between pixels also improves noise by helping to prevent color crosstalk, and thus should produce a cleaner image in dim conditions.

The standard versions of each chip allow further improvements in dynamic range using a method that records two different exposures simultaneously called zHDR. The sensor divides the pixels in a zig zag pattern so that some record a long exposure and others a short one, and the two exposures are combined to form an image with a wider range of tones.

These are second generation sensors that already use phase detection AF and which can record 4K video.

‘4C’ variants of both chips include a non-standard color filter array pattern that makes it easier to combine the signal from four pixels, to give less noisy, lower resolution images.

The company says that they will be ready for mass production in the early part of next year. For more information see the OmniVision website.

Press release

OmniVision Debuts Second-Generation PureCel®Plus and PureCel®Plus-S Technology and Product Families

OmniVision’s Newest Pixel Architecture Brings Exceptional Low-Light Performance and Increased Dynamic Range to Advanced Imaging Applications

OmniVision Technologies, Inc., a leading developer of advanced digital imaging solutions, today introduced its latest advancement in leading-edge pixel technologies: second- generation PureCel®Plus and PureCel®Plus-S. In keeping with OmniVision’s tradition of delivering industry-leading image sensors, the second- generation PureCel Plus technology offers significant improvements over the previous generation, such as higher full-well capacity (FWC), better sensitivity, increased signal-to-noise ratio (SNR) and enhanced low-light performance. Though the initial development was focused on supporting small-pixel products for mobile applications, this technology will ultimately benefit many other image sensor applications.

OmniVision’s second-generation PureCelPlus technology showcases various performance improvements, including:

  • 20 percent increase in FWC, enabling higher dynamic range.
  • A newly introduced composite metal grid (CMG) structure, which increases pixel quantum efficiency and enhances sensor low-light performance, leading to a 12.5 percent improvement in sensitivity.
  • Improved deep trench isolation (DTI) structure, which further reduces color crosstalk and improves the SNR10 (low-light performance index) number by 10 lux.

These structure improvements also enable small-pixel sensors to have better tolerance to incident light angles. This in turn allows imaging systems to use lower F-number lenses for better brightness, and to realize lower module heights that are essential for slimmer phone designs.

“Maintaining good image quality and sensor performance for small pixels in low-light conditions has always been a challenge in the digital imaging space. OmniVision has delivered increasing engineering advances over the years to address this market need,” said Dr. Song Xue, senior manager of sensor technology at OmniVision. “Our second-generation PureCelPlus technology enables our end users to capture high-quality, high-resolution photos, even in challenging lighting environments.”

OmniVision’s second-generation PureCel Plus-S technology will empower new families of compact 20-megapixel and 16-megapixel sensors. The 20-megapixel OV20880 and OV20880-4C and the 16-megapixel OV16885 and OV16885-4C are designed to deliver high-resolution images to high-end smartphones across a variety of lighting conditions.

The OV20880, OV20880-4C, OV16885 and the OV16885-4C are currently available for sampling and are expected to enter volume production in the first quarter of 2017.

Articles: Digital Photography Review (dpreview.com)

 
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Interview: Hasselblad to re-visit core values and aim for a wider market, says CEO Perry Oosting

25 Jun

At Photokina 2012, it felt as though Hasselblad was having a very public identity crisis. The company’s foray into new product categories, via a relationship with Sony and an Italian design house, was not universally well received. We spoke with Hasselblad’s new CEO, Perry Oosting, who assures us that the company will concentrate on re-connecting with the core values of the brand. Read more

Articles: Digital Photography Review (dpreview.com)

 
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Can we get much wider? Canon EF 11-24mm F4 L USM samples gallery posted

19 Mar

Canon’s new EF 11-24mm F4 L wideangle zoom lens is Canon’s widest ever rectilinear zoom by some margin, and may even challenge Nikon’s venerable 14-24mm F2.8 as the tool of choice for landscape, property and architectural photographers. When a reviewable sample arrived in our office last week we wasted no time taking it out shooting. See gallery

Articles: Digital Photography Review (dpreview.com)

 
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