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Posts Tagged ‘sensors’

This eclipse photo shows the crazy dynamic range of today’s image sensors

23 Aug
Nikon D750 without any filters at 1/8s, F11, and ISO 100. Photo by Dan Plucinski

We talk about dynamic range (or lack thereof) a lot here at DPReview. But with all of the granular comparisons between the newest models, it’s easy to forget how incredible many of today’s image sensors have gotten in this regard. So here’s a quick example from photographer Dan Plucinski, who captured this photo in Oregon during the total solar eclipse on Monday.

The photograph on the right is a single image, not a composite. Plucinski simply took the shot on the left and pulled the shadows up in post; what you see on the right is the same image, with all of the shadow detail recovered.

The lesson is pretty straight-forward: always shoot Raw.


Photo by Dan Plucinski and used with permission.

Articles: Digital Photography Review (dpreview.com)

 
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Sony financial report tops estimates thanks to smartphone sensors and earthquake recovery

02 Aug

The fortunes of Sony’s camera division have taken a turn for the better with a rise in first quarter sales and operating income for the period to June 30th. The company states in its latest financial report that higher value still and video cameras have helped it to achieve 27.3% year-over-year growth; however, that figure is inflated in part because the business was suffering the crippling effects of the Kumamoto earthquake this time last year.

Insurance payments from the earthquake have also artificially boosted operating income in both the camera and sensor businesses, with a 15.7 billion yen increase to 23.2 billion (an increase of 209%) in the camera sector and more than 41% growth in income for the sensor business compared to last year, thanks to booming smartphone sensor sales.

In fact, according to Bloomberg, as many as half of the world’s phones currently house Sony sensors. When you multiply that by as many as three sensors per phone—dual cam on the back, one on the front—you begin to understand that 41% growth figure.

Forecasts for the fiscal year ending March 2018 have been revised upwards for the imaging business, with sales expected to hit 650 billion against this year’s 579 billion. Sales of semiconductors are also expected to grow from this year’s 773 billion to 860 billion yen.

For more information see the Sony financial report on the company website.

Extracts from report:

Imaging Products & Solutions (IP&S)

Sales increased 27.3% year-on-year (a 26% increase on a constant currency basis) to 155.6 billion yen. This significant increase in sales was mainly due to the absence of the impact from the 2016 Kumamoto Earthquakes in the same quarter of the previous fiscal year as well as an increase in unit sales and an improvement in product mix reflecting a shift to high value-added models, both in Still and Video Cameras.

Operating income increased 15.7 billion yen year-on-year to 23.2 billion yen.
This significant increase was mainly due to the impact of the above-mentioned significant increase in sales, partially offset by an increase in selling, general and administrative expenses. Operating income for the current quarter included the above-mentioned 2.6 billion yen in insurance recoveries related to the 2016 Kumamoto Earthquakes. During the current quarter, there was no material impact from foreign exchange rate fluctuations.

Semiconductors

Sales increased 41.4% year-on-year (a 38% increase on a constant currency basis) to 204.3 billion yen. This increase was primarily due to a significant increase in unit sales of image sensors for mobile products, as well as the absence of the impact of a decrease in image sensor production due to the 2016 Kumamoto Earthquakes in the same quarter of the previous fiscal year, partially offset by asignificant decrease in sales of camera modules, a business which was downsized.

Operating income of 55.4 billion yen was recorded, compared to an operating loss of 43.5 billion yen recorded in the same quarter of the previous fiscal year. This significant improvement in operating results was primarily due to the impact of the above-mentioned increase in sales, the above-mentioned 27.5 billion yen gain resulting from the sale of the entire equity interest in SEH, and 6.7 billion yen in insurance recoveries related to the 2016 Kumamoto Earthquakes, as well as the absence of the 20.3 billion yen impairment charge against long-lived assets for camera modules and the net charges of 13.6 billion yen for expenses resulting from the 2016 Kumamoto Earthquakes recorded in the same quarter of the previous fiscal year. During the current quarter, there was a 2.5 billion yen positive impact from foreign exchange rate fluctuations.

Articles: Digital Photography Review (dpreview.com)

 
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Samsung Galaxy S8 comes with two different camera sensors

01 Apr

It appears that as with previous Samsung flagship smartphones, the brand new Galaxy S8 and S8+ will, depending on region, come with different camera sensors. Since the launch users have spotted versions with Sony IMX333 and S5K2L2 ISOCELL image sensors. The latter is made by System LSI, which is a subsidiary of Samsung.

The situation is the same for the front camera. One version features a Sony IMX320 imager, the other comes with an ISOCELL S5K3H1 sensor. That said, there is no difference between the two versions in terms of camera specifications. In both main cameras the sensor is a 1/2.55″ 12.2MP variant with Dual-Pixel AF. With an F1.7 aperture and optical image stabilization the lens specification is identical as well. Sensor size in the front camera is not known at this point but all models come with an F1.7 aperture and face-detection AF.

Considering camera specifications are identical on all models and presumably so will be image processing, we should not expect any noticeable differences between the two versions, but if we get the chance, we’ll try and find out if there is any variation in image quality.

Articles: Digital Photography Review (dpreview.com)

 
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Demand for CMOS image sensors projected to increase

22 Jan

According to industry publication DigiTimes, we should expect demand for CMOS image sensors, particularly high-end units, to increase in the short and medium term. This is mainly due to the increased popularity of dual-camera modules in high-end smartphones, such as the Apple iPhone 7 Plus, LG G5 or Huawei P9, and growing demand for imaging applications in the automotive and security industries. 

Approximately 70% of all available sensors currently go into mobile devices which remains the largest application. With dual-cameras slowly but surely becoming standard even on lower-end devices the demand from this sector is expected to grow further.

Demand from those sectors is putting more pressure on already tight CMOS sensor supplies. Of course, that is good news for those camera manufacturers that are also in the sensor business and increased demand should mean more research and development and therefore better products in the long run.

(Photo: ‘Image Sensor’ by Bengt Nyman / Wikimedia Commons. Used under CC license)

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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Teardown reveals Sony image sensors in iPhone 7

24 Sep

Patent and technology consultancy Chipworks has published its iPhone 7 teardown and reveals that front and rear image sensors on the new Apple models are supplied by market leader Sony. This is not too much of a surprise as earlier iPhone models used Sony sensors as well. In its report Chipworks doesn’t say which exact sensor model has been deployed in the rear camera but we know the 12MP chip uses the Exmor RS technology platform, a Bayer RGB color filter array and on-sensor phase detection. Its die size is 5.16 mm x 6.25 mm (32.3 mm2) as measured from the edges of the die stack. 

On the FaceTime front camera the resolution has been increased to 7MP. The Sensor is also a second generation Sony Exmor RS model and measures 5.05 mm x 3.72 mm (18.8 mm2). Chipworks has not treated the larger iPhone 7 Plus model with its dual-camera to the teardown procedure yet, but we would expect both sensors in the dual-camera to come from Sony as well. For now you can find more technical detail in the iPhone 7 teardown on the Chipworks blog.

Articles: Digital Photography Review (dpreview.com)

 
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Nikon covers all focal lengths with three ‘DL’ enthusiast compacts with 1″-type sensors

26 Feb

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Nikon is entering the 1″-type premium compact market in a big way, introducing three new models: the Nikon DL18-50, DL24-85 and DL-24-500. Between them, they cover pretty much every focal length. The ‘guts’ of all three ‘DL’ models are the same, in that they share a sensor, image processor, autofocus system and support for 4K video (with clean HDMI output, no less). Parts of the design, especially the control layout and font, strongly resemble that of Nikon’s 1-series mirrorless cameras.

Sensor-wise, the DLs use what is possibly the same 20.8MP 1″-type BSI CMOS sensor as Nikon’s J5 mirrorless camera. It’s paired with the company’s new EXPEED 6A image processor, which allows for a top ISO of 12800 and 4K/UHD video recording at 30p. All three cameras have ‘Dual Detect VR’, which combines data from the cameras’ angular velocity sensors and the scene itself to reduce shake. They also have fluorine coatings on their lenses to keep moisture and oil away. Each has a manual focus ring around the lens, as well.

They also have 3″ touch-enabled OLED displays, tilting on the 18-50 and 24-85 and fully articulating on the 24-500. Naturally, they all have Wi-Fi with NFC, plus Nikon’s ‘SnapBridge’ technology, which uses Bluetooth to maintain a connection between camera and phone, so there’s no need to re-pair. Battery life on all three DL models is rated at 290 shots/charge (per the CIPA standard).

One of the features that may set the DLs apart from the other 1″-type cameras is its Hybrid AF system, which combines 105 phase-detect with 171 contrast-detect points. This allows the camera to shoot at 20 fps with continuous autofocus, which is, by far, best-in-class (spec-wise). If you can live with single AF, then the DLs can shoot even faster: 60 fps.

Nikon DL18-50

The first camera is perhaps the most interesting, as it has the widest lens of any enthusiast compact on the market. That lens has an equivalent focal length of 18-50mm and a fast maximum aperture range of F1.8-2.8. The lens has a 3-stop ND filter and is Nikon’s first compact to have a Nano Crystal Coating, which reduces flare and ghosting. The lens has seven aperture blades and has a top shutter speed of 1/1600 sec (an electronic shutter, found on all three models, maxes out at 1/16000 sec). There is also built-in perspective correction, which is especially useful when shooting architecture.

The camera has full manual exposure control, Raw support, tilting touch OLED display and aforementioned 4K/30p support. The DL18-50 also supports an optional tilting OLED electronic viewfinder with 2.36M dots. The 18-50 is the only one of the camera cameras to lack a built-in flash, though like its siblings it does have a hot shoe.

Nikon DL24-85

The DL24-85 is very similar to its wider sibling, both inside and out. The main difference is its lens, which is a 24-85mm equiv. F1.8-2.8 model, though it lacks the Nano Crystal Coating. Its standout feature is the ability to take life-size, 1:1 macro photos, with a minimum focus distance of 3cm. Macro shooters can also take advantage of focus peaking and bracketing as well as manual priority AF. Again it includes a built-in ND filter.

Nikon DL24-500

For those seeking a long zoom model, there’s the DL24-500. As its name implies, it has a 24-500mm equiv. lens, with a max aperture range of F2.8-5.6. Unlike the other two models, the 24-500 has a fully articulating display and a built-in OLED viewfinder. It’s also the only of the DL models with a mic input jack, with support for Nikon’s ME-1 shotgun mic. 

All three cameras will be available in early summer with suggested retail prices of $ 649 (24-85), $ 849 (18-50), and $ 999 (24-500).

Press Release:

THE NIKON DL PREMIUM COMPACT SERIES: PUTTING POCKETABLE POWER AND LEGENDARY NIKKOR LENS PRECISION INTO THE HANDS OF PASSIONATE PHOTOGRAPHERS

Pairing a Large 1-Inch Sensor with Superior NIKKOR Lens Technology, Nikon’s New Compact DL24-85, DL18-50 and DL24-500 Will Help Capture Stunning Images and 4K UHD Video

MELVILLE, NY (Monday, February 22, 2016 at 11:01 P.M. EST) – Today, Nikon Inc. announced the new DL Series of premium compact cameras. These pocketable yet powerful imaging tools offer an elite level of imaging prowess that fits easily in one’s palm. Equipped with a variety of focal lengths optimized for different types of shooters, the DL24-85, DL18-50 and DL24-500 combine powerful NIKKOR optics with a large 20.8-megapixel (CX-format) 1-inch BSI CMOS sensor to produce stunning image quality and amazingly detailed images, even when shooting in low-light. Cameras in the new DL line will also feature powerful performance, with high-speed Autofocus (AF) and 20 frames-per-second (60 fps with fixed AF) continuous shooting capability for fast action moments, as well as 4K UHD video recording for users to tell their stories in new ways. Ergonomically designed and familiar for advanced users, all three cameras will utilize the new Nikon SnapBridge connectivity to make it easier than ever to shoot and share with ease.

“We recognize consumers’ desire for smaller cameras capable of outstanding image quality,” said Masahiro Horie, Director of Marketing and Planning, Nikon Inc. “With the new DL line, Nikon is proud to fuse legendary NIKKOR optics with the latest innovations in imaging to provide advanced photographers amazingly compact tools capable of capturing photos and video that even the most discerned professional would be proud of.”

The Nikon DL Series: Powerful Performance, Superior Optics

The new DL line of premium compact cameras packs innovative and powerful imaging technology into elegantly designed yet remarkably compact camera bodies, making it easier than ever to carry pure imaging prowess in the palm of one’s hand. All of these new cameras are designed with a 20.8-megapixel CX-format (1-inch) BSI CMOS sensor, which when combined with fast, high quality NIKKOR glass, help to create stunning image quality for stills or 4K UHD video. Working alongside the new sensor is the new EXPEED 6A image processor that allows for impressive noise reduction and powerful, fast performance, making it possible to capture stunning low-light street photography, beautiful portraits or spectacular landscapes with ease. 

For fleeting moments and fast-action, the DL line incorporates a high-speed hybrid autofocus (AF) system featuring 105 phase detect focus areas (with 171 focus points in contrast detect AF mode), as well as continuous shooting up to an incredible 20 fps, with capability to capture up to a blazing fast 60 fps with focus locked on the first frame. The DL series also features Dual Detect Optical VR technology to compensate for camera shake while handheld or at slower shutter speeds.

Continuing the impressive legacy of NIKKOR glass, each new DL camera features a unique lens design capable of amazing resolution and beautiful background blur (bokeh), with impressively fast apertures. The lens barrel also includes a manual focus ring, giving users enhanced control over focus on any subject.

Each NIKKOR lens is also equipped with a fluorine coating that helps repel dirt, water and oil, and also facilitates easy cleaning. For the first time in a Nikon compact camera, the DL18-50’s NIKKOR lens will utilize Nano Crystal Coat to help reduce ghost and flare, particularly useful when shooting at a wide-angle. With the best NIKKOR technologies now integrated into compact camera models, users will be able to capture phenomenal images with amazing detail time and time again. 

Control and Versatility

The DL24-85, DL18-50 and DL24-500 put creative control in the hands of each photographer and are all operated using the familiar Nikon DSLR menu design and an assortment of physical controls. The series also supports RAW (NEF) image capture, full PSAM manual controls and over 20 preset creative options, for use in both still and video shooting (including Picture Control, Creative mode, Multiple Exposure Lighten) to help challenge each user to expand their photographic horizons.

The DL line provides the tools to frame nearly every shot, with all three cameras sporting high-resolution 1,037k-dot OLED Touch displays. While the DL24-85 and DL18-50 allow for tilting, the DL24-500’s display provides full Vari-angle capability, vitally important when shooting from unique perspectives. Even further customization and control is possible utilizing the hot shoe/accessory shoe available on DL24-85 and DL18-50 models that allows for complete system expandability with the DF-E1 optional electronic viewfinder. The DL24-500 also sports a hot shoe and a stereo microphone input jack, while all three models are compatible with Nikon i-TTL Speedlights. 

Seamlessly Shoot and Share

Nikon SnapBridge makes it easier than ever to shoot and share amazing images with friends and family. Available throughout Nikon’s newest line of premium compacts, SnapBridge utilizes Bluetooth®1 low energy technology (BLE) to provide an “always on” connection to a compatible2 smart device. Users can now seamlessly send images from their camera to a smart device (utilizing the new SnapBridge app) for easy sharing via social networks or to the cloud for instant storage. An unlimited number of thumbnails and 20 GB of storage will also be available for registered Nikon owners and SnapBridge users on Nikon Image Space, Nikon’s free image storing service. Additionally, built-in Wi-Fi3 and NFC remain available to help facilitate easy connection and sharing. 

Through Nikon SnapBridge, users can also operate their cameras remotely using the app, automatically synchronize time and location information to any image utilizing the camera’s constant connection to a compatible smart device, as well as embed information on any image, including copyright or photographers’ names. Lastly, firmware updates have never been easier, as Nikon will send registered users firmware information via the new SnapBridge application, directly to their smart device.

4K Video Capability

The DL series will be among Nikon’s first compact offerings to support 4K UHD video capability [3840×2160] at 30p, affording users the ability to capture incredibly beautiful video with remarkable detail, all with a compact camera. Multimedia photographers will have free reign over their creative vision with the ability to utilize PSAM selectable exposure modes while recording, alongside popular movie features like HDMI output to an external recorder, slow motion to 1200 fps and the ability to grab stills from video. Other creative video functions available include: Full HD movie, HD movie, Motion Snapshot, Slow motion, 4-second movie, Time-lapse movie, Superlapse movie and Jump cut.

DL24-85: The Premium Compact Camera Ready for Anything

Great for travel, portraits and general photography, the DL24-85 offers pocket-sized imaging power with a fast and versatile 24-85mm focal range. Compatible with 40.5mm threaded filters, the newly designed NIKKOR lens (11 elements in 9 groups) features a 3.6x zoom range (7x with Dynamic Fine Zoom4) and a wide f/1.8-2.8 aperture, empowering users to capture a wide variety of subjects with incredible detail and natural bokeh, even in low-light. The 24-85mm offering also features Dual Detect Optical VR, AF bracketing and a tilting Touch OLED display to make composing from creative angles easier than ever.

Exclusive to this DL model is a new Super Macro Mode (1:1) that helps capture even small subjects in life-size detail. Setting manual zoom on the camera to super macro position allows the user close-up shooting at a 35mm equivalent magnification, providing amazing detail whether shooting flowers in bloom or a wandering ladybug. Macro photographers can utilize a variety of camera functions within the mode, including focus bracketing, manual priority AF (M/A) mode and peaking indication, to truly customize the look and feel of every image.

DL18-50: A Premium Pocket Camera That Can Capture It All

For landscape and architecture shooters looking for compact, ultra-wide angle DL option, the DL18-50 provides a solution that fits easily into any photographer’s pocket. Starting at a wide 18mm and expanding to 50mm (2.8x zoom, 5.5x with Dynamic Fine Zoom) the camera sports a powerful NIKKOR lens with a wide f/1.8-2.8 aperture that makes it easier than ever to produce natural bokeh in any image, while capturing tack-sharp stills and video. This lens is compatible with 46mm filters and features Nikon’s Nano Crystal Coat to help reduce ghosting and flare. 

Those who choose the wide-angle DL premium compact can also take advantage of perspective controls to help compensate for image distortion, particularly for shooting tall objects from the ground like landmarks and skyscrapers. Tailored for architecture shooters, this feature helps to capture the correct perspective with ease.

For use with the DL24-85 and DL18-50, a newly designed optional DF-E1 electronic viewfinder (EVF) will be available for discerning photographers who desire for a traditional eye-level viewfinder to frame their photos. The compact DF-E1 features a 2,359k-dot resolution with eye sensor, alongside a tilting mechanism, diopter adjustment and anti-reflection coating, helping provide further clarity and versatility for DL shooters. 

DL24-500: Get Close and Connect

The DL24-500 offers the longest zoom capability of any DL premium compact, reaching an incredible 500mm focal length and 21x optical zoom (42x with Dynamic Fine Zoom). Combining Nikon’s new 1-inch sensor with this impressive super-zoom NIKKOR lens, the DL24-500 is an ideal choice for users eager to photograph and share anything from concerts to wildlife. Featuring an f/2.8-5.6 aperture, this lens (compatible with 55mm filters) integrates the newest NIKKOR technologies to help render amazing images and background blur, even from afar.

The DL24-500 also features Dual Detect Optical VR, particularly useful when shooting at extremely long focal lengths or without a tripod, a built-in electronic viewfinder (EVF) with 2,359k-dot OLED display and an eye-sensor and a Vari-angle 1,037k-dot OLED screen.

Price and Availability

The new DL24-85, DL18-50 and DL24-500 will be available in early summer 2016 for suggested retail prices (SRP) of $ 649.95*, $ 849.95*, and $ 999.95*, respectively. Pricing and availability for the optional DF-E1 electronic viewfinder, compatible with both the DL24-85 and DL18-50, is TBD. For more information on these new Nikon products, please visit www.nikonusa.com.

1 The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Nikon Corporation and its affiliates is under license. 

2. WI-FI COMPATIBILITY This camera’s built-in Wi-Fi® capability can only be used with a compatible iPhone®, iPad®, and/or iPod touch® or smart devices running on the Android™ operating system. The Nikon SnapBridge application must be installed on the device before it can be used with this camera. The SnapBridge app is not yet available (coming soon in spring 2016) Apple, the Apple logo, iPhone, iPad and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.

3. Wi-Fi and the Wi-Fi logo are trademarks or registered trademarks of the Wi-Fi Alliance. N-Mark is a trademark or registered trademark of NFC Forum, Inc., in the United States and/or other countries.

4. Dynamic Fine Zoom magnification is calculated from the full-wide end of optical zoom

* SRP (Suggested Retail Price) listed only as a suggestion. Actual prices are set by dealers and are subject to change at any time.

Nikon DL18-50 / DL24-85 specifications

  Nikon DL18-50 Nikon DL24-85
Price
MSRP $ 849 $ 649
Body type
Body type Large sensor compact
Sensor
Max resolution 5584 x 3712
Image ratio w:h 3:2
Effective pixels 21 megapixels
Sensor photo detectors 23 megapixels
Sensor size 1″ (13.2 x 8.8 mm)
Sensor type BSI-CMOS
Processor Expeed 6A
Color space sRGB
Color filter array Primary color filter
Image
ISO Auto, 100-12800
White balance presets 7
Custom white balance Yes
Image stabilization Optical
Uncompressed format RAW
File format
  • JPEG (Exif v2.3)
  • Raw (NEF)
Optics & Focus
Focal length (equiv.) 18–50 mm 24–85 mm
Optical zoom 2.8× 3.5×
Maximum aperture F1.8 – F2.8
Autofocus
  • Contrast Detect (sensor)
  • Phase Detect
  • Multi-area
  • Center
  • Selective single-point
  • Tracking
  • Single
  • Continuous
  • Touch
  • Face Detection
  • Live View
Autofocus assist lamp Yes
Digital zoom Yes (4x)
Manual focus Yes
Normal focus range 15 cm (5.91) 30 cm (11.81)
Macro focus range 3 cm (1.18)
Number of focus points 171
Screen / viewfinder
Articulated LCD Tilting
Screen size 3
Screen dots 1,037,000
Touch screen Yes
Screen type OLED
Live view Yes
Viewfinder type Electronic (optional)
Photography features
Minimum shutter speed 30 sec
Maximum shutter speed 1/2000 sec 1/1600 sec
Maximum shutter speed (electronic) 1/16000 sec
Exposure modes
  • Program AE
  • Shutter priority
  • Aperture priority
  • Manual
Scene modes
  • Bird Watching
  • Close-up
  • Food
  • HDR
  • Landscape
  • Multiple Exposure Lighten
  • Night Landscape
  • Night Portrait
  • Portrait
  • Selective Color
  • Sports
Built-in flash No Yes
Flash range 5.00 m (at ISO 100)
External flash Yes (via hot shoe)
Continuous drive 60.0 fps
Self-timer Yes (2 or 10 secs)
Metering modes
  • Multi
  • Center-weighted
  • Spot
Exposure compensation ±5 (at 1/3 EV, 1 EV steps)
Videography features
Resolutions 3840 x 2160 (30p, 25p), 1920 x 1080 (60p, 50p, 30p, 25p), 1280 x 720 (60p, 50p, 30p, 25p)
Format MPEG-4, H.264
Videography notes Slow motion: 1080/120p, 720/240p, 800 x 296 (400p), 400 x 144 (1200p)
Microphone Stereo
Speaker Mono
Storage
Storage types SD/SDHC/SDXC
Connectivity
USB USB 2.0 (480 Mbit/sec)
HDMI Yes (micro-HDMI)
Microphone port No
Headphone port No
Wireless Built-In
Wireless notes Wi-Fi with NFC and constant connection via Bluetooth
Remote control Yes (via smartphone)
Physical
Battery Battery Pack
Battery description EN-EL24 lithium-ion battery & charger
Battery Life (CIPA) 290
Weight (inc. batteries) 365 g (0.80 lb / 12.87 oz) 350 g (0.77 lb / 12.35 oz)
Dimensions 106 x 63 x 58 mm (4.17 x 2.48 x 2.28) 105 x 61 x 50 mm (4.13 x 2.4 x 1.97)
Other features
Orientation sensor Yes
Timelapse recording Yes (video)
GPS None

Nikon DL24-500 specifications

Price
MSRP $ 999
Body type
Body type Large sensor compact
Sensor
Max resolution 5584 x 3712
Image ratio w:h 3:2
Effective pixels 21 megapixels
Sensor photo detectors 23 megapixels
Sensor size 1″ (13.2 x 8.8 mm)
Sensor type BSI-CMOS
Processor Expeed 6A
Color space sRGB
Color filter array Primary color filter
Image
ISO Auto, 100-12800
White balance presets 7
Custom white balance Yes
Image stabilization Optical
Uncompressed format RAW
File format
  • JPEG (Exif v2.3)
  • Raw (NEF)
Optics & Focus
Focal length (equiv.) 24–500 mm
Optical zoom 20.8×
Maximum aperture F2.8 – F5.6
Autofocus
  • Contrast Detect (sensor)
  • Phase Detect
  • Multi-area
  • Center
  • Selective single-point
  • Tracking
  • Single
  • Continuous
  • Touch
  • Face Detection
  • Live View
Autofocus assist lamp Yes
Digital zoom Yes (4x)
Manual focus Yes
Normal focus range 30 cm (11.81)
Macro focus range 1 cm (0.39)
Number of focus points 171
Screen / viewfinder
Articulated LCD Fully articulated
Screen size 3
Screen dots 1,037,000
Touch screen Yes
Screen type OLED
Live view Yes
Viewfinder type Electronic (optional)
Viewfinder coverage 97%
Viewfinder resolution 2,359,000
Photography features
Minimum shutter speed 30 sec
Maximum shutter speed 1/2000 sec
Maximum shutter speed (electronic) 1/16000 sec
Exposure modes
  • Program AE
  • Shutter priority
  • Aperture priority
  • Manual
Scene modes
  • Bird Watching
  • Close-up
  • Food
  • HDR
  • Landscape
  • Multiple Exposure Lighten
  • Night Landscape
  • Night Portrait
  • Portrait
  • Selective Color
  • Sports
Built-in flash Yes
Flash range 10.00 m (at ISO 100)
External flash Yes (via hot shoe)
Continuous drive 60.0 fps
Self-timer Yes (2 or 10 secs)
Metering modes
  • Multi
  • Center-weighted
  • Spot
Exposure compensation ±5 (at 1/3 EV, 1 EV steps)
Videography features
Resolutions 3840 x 2160 (30p, 25p), 1920 x 1080 (60p, 50p, 30p, 25p), 1280 x 720 (60p, 50p, 30p, 25p)
Format MPEG-4, H.264
Videography notes Slow motion: 1080/120p, 720/240p, 800 x 296 (400p), 400 x 144 (1200p)
Microphone Stereo
Speaker Mono
Storage
Storage types SD/SDHC/SDXC
Connectivity
USB USB 2.0 (480 Mbit/sec)
HDMI Yes (micro-HDMI)
Microphone port Yes
Headphone port No
Wireless Built-In
Wireless notes Wi-Fi with NFC and constant connection via Bluetooth
Remote control Yes (via smartphone)
Physical
Battery Battery Pack
Battery description EN-EL20A lithium-ion battery & charger
Battery Life (CIPA) 290
Weight (inc. batteries) 780 g (1.72 lb / 27.51 oz)
Dimensions 123 x 90 x 139 mm (4.84 x 3.54 x 5.47)
Other features
Orientation sensor Yes
Timelapse recording Yes (video)
GPS None

Articles: Digital Photography Review (dpreview.com)

 
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Panasonic to restart development of image sensors to fast-track 8K video

08 Dec

According to a report from the Nikkei Asian Review, Panasonic has decided to resume image sensor development in order to speed up the drive for 8K video. The company suspended its development program a few years ago, the report says, but now Panasonic is preparing to invest ¥10bn/$ 80.8m to get its R&D back up to speed.

The renewed effort is said to be aimed at producing sensors for 8K video output for its consumer and broadcast cameras, with production models expected on the market by 2018. 

Recently, Panasonic has used its 4K video functions for a range of applications in addition to video, such as 4K Photo, where a still is extracted from a 30fps burst, and the Post Focus feature that allows users to change what is in focus after the picture has been taken. Presently, the stills extracted from clips made using these modes are only 8MP, but if that clip were recorded at 8K video (around 7680 x 4320) the stills would be in the region of 33MP, depending on the image proportions chosen. This is very much in line with Panasonic’s previous promise that we will be extracting 33MP still images from its cameras by the Tokyo Olympics in 2020. 

The report says that the introduction of 8K video in cameras will eliminate the boundary between videos and stills. It will certainly change the way images are created in quite a dramatic way.

Articles: Digital Photography Review (dpreview.com)

 
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6 Benefits of Using Cameras With Larger Sensors

08 Dec

With ever increasing megapixel counts in smartphone cameras, do you need a dedicated camera at all? Or perhaps could you just get a really tiny compact camera?

At this point in time at least, the answer is probably no. Or at least not if you really want consistently good image quality. The reason is, that these devices don’t have large enough digital sensors.

The digital image sensor is the part of the camera that actually captures the image, from the light that is reflected onto it by the lens. The sensors are of a good size in any DSLR or mirrorless camera you are likely to buy, but in an iPhone or compact camera they are tiny.

It may be obvious to you that a larger digital sensor might result in higher resolution in your pictures. But, there are other benefits of a larger sensor that you might not be aware of, which go well beyond resolution. Therefore, in this article, I want to explain why a digital sensor is so important to your photography. The fact is it may be the most important factor to consider when purchasing a new camera.

1. Larger sensors generally provide higher resolution

Sensor size comparison chart

Sensors in DSLRs and mirrorless cameras are generally either Micro Four Thirds, APS-C, or Full Frame. Any of these will usually work fine, and as you can see they are all of good size. The sensors for smartphones and compact cameras, on the other hand, are extremely small in comparison.

Let’s start with the obvious thing – resolution. Having a digital sensor with a larger surface area provides the opportunity to include more pixels. Assuming the pixels are the same size, having a digital sensor that is 40% larger, reads that there can be 40% more pixels. That means higher resolution for your images, which in turn means more detail and the ability to make them larger.

A larger sensor can also lead to larger pixels, which has significant benefits for your pictures. If you see a Full Frame camera with the same number of megapixels as an APS-C camera, that doesn’t mean they will have the same image quality. Rather, that means the pixels will have been spread out over a larger surface area in the Full Frame model, and as you will see in the remainder of this article, having larger pixels spread out over a wider surface area has a whole host of benefits for your photography.

2. Larger sensors result in improved low-light performance

The number one predictor of whether a camera will have good low-light performance is the size of the digital image sensor. The camera testing that has been done shows a direct correlation between larger image sensors, and improved low-light performance.

A company called DxO Mark tests all digital cameras and assigns them a low-light performance score, which it calls its “sports” score (presumably because using high ISO is important to sports shooters, who often face poor light and need to use fast shutter speeds). This score is actually an ISO value. Specifically, the score is the highest ISO at which the camera will create a picture, without noise becoming too large of an issue (there is actually a technical formula they use involving decibels and signal to noise ratio, but that is my layperson’s definition of their score). The higher the score, the higher the useable ISO for that camera. For example, if a camera scores 900, that means the highest usable ISO for that camera is ISO 900. A camera with a score of 1250 would mean that its low-light performance was better, and performed well up to ISO 1250. And so on.

When comparing the scores for the current models of DSLRs and mirrorless cameras being sold right now, and then separating the results by sensor size, the result is rather striking:

Low light performance by sensor sizeTo explain this chart a little further, the range on the bottom is DxO Mark’s “sports scores,” which as mentioned above are really ISO values. Each camera was assigned a score, and I sorted them by sensor type. The range of values for Micro Four Thirds cameras is between ISO 757 and 896 (with the average at 825). The range for cameras with APS-C sensors is ISO 915 – 1438 (with an average of 1161). The range for full frame cameras is ISO 2293 – 3702 (with an average of 2811).

Notice that even the lowest rated APS-C camera performs better than the highest rated Micro Four Thirds camera. Similarly, even the lowest rated full frame camera performs better than the highest rated APS-C camera. When it comes to low-light performance, sensor size appears to make all the difference.

3. Dynamic range will likely be increased with larger image sensors

A larger digital image sensor also appears to lead to an increase in dynamic range for your camera. This is the range of tones that your camera can capture between pure white and pure black. The wider the range, the better.

There is no simple measurement for dynamic range, so comparing cameras is difficult. Finding the low-end of the spectrum (black) has a lot to do with the low-light performance of the camera, because digital noise increases when capturing very dark tones. At some point, the noise overwhelms the picture, so the bottom end of the dynamic range scale is not really “pure black” but rather “usable black.” What that means for us is that low-light performance determines part of the dynamic range of the camera, and as we saw in the previous section, low-light performance is largely a function of sensor size. Therefore, it would appear that a larger sensor would mean a higher dynamic range.

The digital image sensor testing done by DxO Mark bears this out. They call this their “landscape” score, and their results show a correlation between sensor size and an increase in dynamic range. The average for Micro Four Thirds cameras I looked at was 12.5 stops of dynamic range. That increased a bit to 13.0 for cameras with APS-C sensors, and then to 13.4 for full frame cameras. Therefore, a camera with a larger digital image sensor is very likely to have a larger dynamic range.

Comparison of dynamic range in digital cameras

All these scores are pretty comparable, and my point is not so much to compare these sensors (which will all get the job done), but rather simply to show that sensor size matters. Based on this, we can see that a camera with a much smaller image sensor (like a phone or compact camera) would not perform as well when it comes to these measures of image quality.

4. A larger sensor lets you create more background blur

If you want an appreciable degree of background blur in your images, you will need to use a larger digital image sensor. It is not just a function of aperture size (although that is obviously a very big part of it). In fact, it is virtually impossible to achieve a strong amount of background blur with a camera that has a tiny image sensor.

The relationship between digital image sensor size and background blur has actually been tested by the folks at DP Review. Here is a link to their testing and results. Be warned that they use a lot of math and technical terms. Here is a chart with some of their results:

DP-Review-Background-Blur-Chart

 

 

The results are that cameras with very small digital image sensors like smartphones and compact cameras are worthless if you aim to include background blur in your pictures. They go on to show that the larger the digital image sensor, the more blur you can include in your pictures. Therefore, sensor size is an important consideration if you want to achieve any amount of background blur in your photos.

5. A larger sensor can mean less diffraction

One other impact that the size of the digital image sensor has on your photos – and one of which you might not be aware – is on the amount of diffraction in your photos.

This may come as a surprise to you, if you are somewhat familiar with diffraction, because it is largely a function of using a very small aperture. Here’s how diffraction affects your pictures: When you use a small aperture, light reaching the edges of the image sensor can only get there after passing through the small aperture and then spreading out. That spreading of light causes the light rays to hit adjacent photo sites. Essentially, this spreading causes the light to sometimes hit the wrong photo site and leads to blur.

What does that have to do with the digital image sensor? Remember that diffraction is caused by a scattering of light across photo sites. Therefore, if you cram a lot of megapixels on a digital image sensor, the photo sites will be very small, and the scattering of light will cross over onto other photo sites more easily. That will mean an increase in diffraction. But in a camera where megapixels are more spread out, the same amount of scattering, will have less of an impact on your pictures.

As a result, larger image sensors where pixels are more spread out, tend to result in less image diffraction.

6. Larger sensors reduce the crop factor

Finally, let’s not forget about the crop factor that results from using a smaller digital image sensor. This chart shows the impact of crop factors. Notice in particular the yellow square in the center that shows the range of view for compact cameras:

Impact of crop factors

Of course, camera manufacturers have adapted to this by introducing extremely wide angle lenses which are designed for cameras with smaller sensors. Still it is generally much easier to obtain wide angle pictures using a larger image sensor.

Conclusion

It is not my intent to trash any particular camera, or system. The fact is that any camera is better than no camera, so use what you have. What I want to show here is that there are significant benefits to lugging around your DSLR, or mirrorless camera. That is true whether it is a Micro Four Thirds, APS-C, or a Full Frame camera. The benefits go well beyond resolution, and affect your overall image quality.

Larger sensors help you take better pictures in low-light, capture a greater dynamic range of tones, result in reduced diffraction, and let you achieve more background blur. So keep lugging around those cameras rather than trying to get it done with a phone or a compact model.

Do you have any additional data or questions you’d like to add? Please share in the comments below.

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G-whizz: Canon unveils PowerShot G5 X and compact-sized G9 X with 20MP 1″-type sensors

13 Oct

Canon has introduced two new enthusiast compacts with 1″-type CMOS sensors: the PowerShot G5 X, which will sit above the PowerShot G7 X, and the entry-level G9 X which is roughly the size of the PowerShot S120. Read more

Articles: Digital Photography Review (dpreview.com)

 
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