Samsung Galaxy S3 Camera Review
DxOMark Mobile Report: Samsung Galaxy S3
With a DxOMark Mobile score of 72 the Samsung Galaxy S3 is placing itself among the best smartphones so far tested by the DxOMark, but fails to offer any significant advantages over the direct competitors in the top-of-the-line bracket of the smartphone market.
The DxOMark team report that the Galaxy S3 produces results with vivid and pleasant colors in outdoor shooting, that autofocus is accurate, repeatable and smooth, and that the flash performance is generally good.
Performance drops under low light where a "loss of texture due to an over-reduction of noise" can be observed. "Auto-exposure sometimes fails in challenging outdoor conditions (bright gray sky, backlit) or in low light conditions" and a "slight color shading noticeable with different lightings".
In video mode, DxOMark's engineers reported that the Samsung Galaxy S3 gives "pleasant colors and exposure", the autofocus is "intuitive and reactive" and "noise is not visible in bright light conditions." On the other hand "autofocus in continuous mode is unstable, and produces noticeable lens breathing, strong noise is visible in low light conditions and stabilization does not manage to compensate for walking motion."
Dr. Frédéric Guichard, DxO Labs’ Chief Scientific Officer, said: 'The Samsung Galaxy SIII is a perfect example of the image quality improvement of mobile devices. Its full HD videos are truly impressive, the best that DxOMark Mobile has tested so far, with better quality than those of a recent compact camera such as the Canon Powershot S100.'
Color, Exposure and Contrast
The DxOMark team found that the Samsung Galaxy S3's colors are "vivid and pleasant in outdoor conditions", and that its "white balance is stable and accurate". The option to use manual exposure settings was noted as a positive as well. As expected the Galaxy SIII performed better in bright natural light than indoors. "Slight color shading is noticeable in indoor conditions" and "in low light with a tungsten illuminant, a red color cast is visible and colors are slightly washed out". Because of this DxOMark scored the Samsung Galaxy S3 at 77/100 for Color in bright light and 75/100 in low light. "Auto-exposure sometimes fails in challenging outdoor conditions" but overall the SIII's metering is decent, with exposure and contast scoring 75/100.
Overall DxOMark awarded the Samsung Galaxy S3 scores of
- 4.0 out of 5 for Exposure,
- 4.5 out of 5 for White Balance accuracy
- 4.5 out of 5 for Color shading*
- 3.0 out of 5 for Color Rendering in low light, and
- 4.5 out of 5 for Color Rendering in bright light
*Color Shading is the nasty habit cellphone cameras have of rendering different areas of the frame with different color shifts, resulting in pictures with, for example, pinkish centers and greenish corners. The Samsung Galaxy SIII didn't exhibit significant shading in anything but the very lowest light conditions (20 Lux).
Noise and Details
DxOMark's engineers reported that the Samsung Galaxy SIII captures "nice details in outdoor pictures" and that the "noise levels stay acceptable even in low light". However, they also observed a "loss of detail in low light condition because of strong noise reduction." They also criticize the "sharpness imbalance between edge and texture due to too strong sharpening on contours."
Texture Acutance is a way of measuring the ability of a camera to capture images that preserve fine details, particularly the kind of low contrast detail (textures such as fine foliage, hair, fur) that can be blurred away by noise reduction or obliterated by excessive sharpening.
Sharpness is an important part of the quality of an image, but while it is easy to look at an image and decide visually whether it's sharp or not, the objective measurement of sharpness is less straightforward.
An image can be defined as 'sharp' if its edges are sharp and if fine details are visible, but in-camera processing means it's possible to have one of these (sharp edges) but not the other (fine details). Conventional MTF measurements tell us how sharp an edge is, but have drawbacks when it comes to measuring fine detail preservation. Image processing algorithms can detect edges and enhance their sharpness, but they can also find homogeneous areas and smooth them out, to reduce noise.
Texture Acutance, on the other hand, can qualify sharpness in terms of preservation of fine details, without being fooled by edge enhancement algorithms.
At first sight, the images from these two cameras may appear equally sharp. A sharpness measurement on edges will indeed confirm this impression, and will even show that the second camera is sharper. But a closer examination of low contrasted textures shows that the first camera has a better preservation of fine details than the second. The purpose of the Texture Acutance measurement is to qualify this difference.
Visual Noise is a value designed to assess the noise in an image as perceived by the human visual system, depending on the viewing condition (size of image, size of screen or print, viewing distance). The measurements have no units and can be simply viewed as a weighted average of noise standard deviation for each channel in the CIE L*a*b* color space. The lower the measurement, the less noise in the image.
Noise & Detail Perceptual scoring
- Texture (bright light): 4.5 out of 5
- Texture (low light): 3.0 out of 5
- Noise (bright light): 3.5 out of 5
- Noise (low light) 3.0 out of 5
Phone cameras, like entry-level compact cameras, tend to suffer from artifacts such as sharpening halos, color fringing, vignetting (shading) and distortion, which can impact on the visual appeal of the end result. DxOMark engineers measure and analyse a range of artifacts. Their findings after testing the Samsung Galaxy SIII are shown below:
- No major problems
- Rinign noticeable at a 100% scale, due to strong sharpening filter
- Significant loss of sharpness in low light conditions
- Sharpness 4.0 out of 5
- Color fringing 4.5 out of 5
- Ringing center: 17.7%
- Ringing corner 5.9%
- Max geometric distortion 0.35%
- Luminance shading 17%
Distortion & Chromatic Aberrations
DxOMark also tests autofocus accuracy and reliability by measuring how much the accutance - sharpness - varies with each shot over a series of 30 exposures (defocusing then using the autofocus for each one). As with other tests these results are dependant on the viewing conditions (a little bit out of focus matters a lot less with a small web image than a full 8MP shot viewed at 100%). Even using the 8MP equiv. condition the Samsung Galaxy SIII did very well, earning an overall score of 91/100 in bright light and 71/100 in low light.
- At 700 Lux, the autofocus is fast, accurate and reliable in both auto mode and trigger mode
- Scene change detection is good and automatic focusing is accurate
- Automatic face detection
- Autofocus slightly less repeatable in low light
DxOMark scored the Samsung Galaxy SIII 81/100 overall for its flash performance, deducting points for occasional white balance issues in mixed light and the lack of red-eye reduction.
- Good overall image quality with or without additional light source: nice colors, good exposure and sharp details
- Colors are sometimes neither accurate nor uniform when mixed with a tungsten illuminant
- No red eye correction
Overall DxOMark Mobile score for Photo: 73 / 100
DxOMark engineers put phone cameras through a similarly gruelling set of video tests, and you can read their full findings on the DxOMark website here. We'll simply summarize for you. In bright light DxOMark found the Samsung Galaxy S3 to produce good results with good exposure, pleasant color rendering and free from noise. Lowlight performance was less impressive, with a significant loss of detail and increased amounts of both luminance and chroma noise. Image stabilization only compensates for relatively small movements and the AF can be little unstable in continuous mode (but can be locked).
- Colors and exposure are pleasant.
- Intuitive and reactive autofocus
- Videos are free from noise in bright light conditions.
- Autofocus in continuous mode is unstable, and produces noticeable lens breathing .
- Strong noise in low light conditions.
- Visible color shading under tungsten light source.
- Stabilization does not manage to compensate for walking motions.
Overall DxOMark Mobile score for Video: 71 / 100
Oct 28, 2015
Oct 30, 2015
Oct 29, 2015
Oct 29, 2015
|.....the ROYAL LOTUS 2017/08/25-NEW YORK..... by Chiwat|
from Wild flowers
|Coffee and Mango cake by clicker88|
from Another cup of coffee
The venerable Canon PowerShot G1 was announced seventeen years ago this week, marking the start of a line of enthusiast-focused compacts that's still alive and kicking.
Super macro photographer Can Tuncer captured these incredible close-ups of a single peacock feather using a special setup and three different microscope lenses.
After successfully crowdfunding the Biotar 75mm F1.5, Oprema Jena is at it again. This time they're bringing back the Biotar 58mm F2: the world's only lens with a 17-blade aperture.
Adobe's move to a subscription model is treating it very well indeed. The company has posted record revenue for the second quarter in a row, hauling in a mind-boggling $1.84 billion.
More details have emerged about the potential sale of Blackstone's 45% stake in iconic camera brand Leica.
Popular mobile editing app Snapseed just got a major update that includes a new interface and 11 new presets for both Android and iOS, as well as adding the Perspective tool to the iOS version.
It might sound like a strange idea, but taking macro photos of boiling water can actually result in some really cool photographs. A good photo experiment for a rainy day.
The database was created to "break with the narrow lens through which history… has been recorded" by equipping those who commission photography with "the resources to discover photographers of color available for assignments.
Lensbaby has released two new optics for their special "optic swap system." The Lensbaby Sweet 80 Optic gives you that trademark sweet spot of focus, while the Creative Bokeh optic gives you 9 different drop in aperture plate options to play with.
TechCrunch has already posted their review of the upcoming iPhone 8 (not yet the iPhone X), and they're calling it "a look into the augmented future of photography."
Affinity Photo is a $50 photo editing software with no subscriptions. That's it – pay for it once and you're done. And we think it's actually pretty darn good.
Instagram is currently testing a major change to the app's profile layout: replacing the 3-photo across grid with a 4-photo grid... and some users are NOT taking the news well.
A report by USSRPhoto is shedding some light on the return of the famed Zenit camera brand. It seems the full-frame mirrorless camera they're working on will be made in part by Leica using components from the Leica SL.
According to a reliable Korean report, Samsung is developing a smartphone sensor that's capable of super slow motion. Translation: Samsung's next batch of Galaxy smartphones may be able to shoot 1,000fps.
This simple photograph of a seahorse and Q-tip has taken the internet by storm. We spoke to photographer Justin Hofman about how it was captured, and what it means to him.
After a massive leak last week, Profoto has officially debuted the Profoto A1: the company's first on-camera flash system that they're calling "the world's smallest studio flash."
"When the first hyperfocal distance charts were designed, someone decided that an acceptably sharp background contained some blur — enough to notice in a medium-sized print [...] After that point, nearly every other hyperfocal chart followed suit."
The Canon EOS Rebel SL2 (also known as the EOS 200D) is the company's impressively compact entry-level DSLR. Packing a 24MP APS-C sensor, DIGIC 7 processor and Dual Pixel AF, it promises a lot of bang for the buck. And while not mind-blowing, it handles most tasks very well.
Correct these four common composition mistakes and your photos will be more balanced, tell a better story, and lead your viewer's eye where you want it to go.
The rugged, compact 360° action camera Kodak unveiled at Photokina in 2016, the Kodak PixPro Orbit 360, is finally available in the United States.
iOS 11 launches tomorrow, and it'll save all of your pictures in a new high efficiency image format called HEIC. Fortunately, there's now a converter that will let you turn those photos back into JPEGs.
Photo protection company ImageRights recently released a new service that lets non-subscribers take advantage of their streamlined copyright registration system that checks for errors and fills out all the required forms for you.
What's the difference between a $200 circular polarizing filter and a $100 circular polarizing filter? Roger Cicala at Lens Rentals put six different filters through a few tests to find out.
A flurry of leaks reveal that GoPro's upcoming Hero6 will shoot 4K at 60fps, 1080p at 240fps, will cost $500, and is scheduled for announcement/release on September 28th.
Before he became the iconic director whose name we've all heard, a teenage Stanley Kubrick struck up a business relationship with New York’s Look magazine. No surprise: he was an incredibly talented photographer.
WD's new G-Technology G-Drive mobile SSD R-Series is a portable solid state option for photographers who want the reliability of an SSD in a rugged water and dust-resistant package.
Fast, stabilized and affordable is an appealing combination when it comes to lenses. With its latest 24-70mm F2.8, Tamron aims to upgrade autofocus speed and stabilization. We've got a full gallery from this updated full-frame zoom.
Photographer Clay Cook tells the story of his most ambitious photographic dream and career goal coming true: photographing A-list actress Jennifer Lawrence.
In an interview with a Chinese website, Nikon Japan's Director of Development dropped a bombshell, saying that a Nikon mirrorless camera "must be full-frame."
Here's a side-by-side spec comparison of two flagship devices with particular attention to the things that really matter – at least to people who prioritize photography features.