Latest sample galleries
Latest in-depth reviews
The Tamron 50-400mm F4.5-6.3 Di III VC VXD boasts an impressive zoom range in a relatively compact package. How does it perform? We took a look.
At a quick glance the Nokia Lumia 925's camera specification appears to be identical to its predecessor's, the Lumia 920, but if you look again you'll see that there are a few small but potentially important differences. The lens gains an extra element with a now 6-element design, a dual-LED flash element is added and the camera also gains an ISO 3200 setting. According to Nokia the image processing has also been significantly improved, to offer both improved detail in good light and better quality in low light. (We recently pitted all three Lumia 900 series models — the 920, 925 and 928 — against one another in our Nokia smartphone shootout.)
The Lumia 925 is PureView branded but doesn't use the Lumia 1020's large sensor and pixel-binning algorithms. Instead it features a conventional 8.7 MP CMOS sensor, a F2.0 lens and optical image stabilization. Its aluminum-edge body comes with a polycarbonate back and integrated antenna. On the front you'll find a piece of curved Gorilla Glass 2. At 4.5 inches the screen itself is the same size as that of the Lumia 920 and 1020. The device also features wireless charging (with an accessory cover) and LTE connectivity.
With the introduction of the Lumia 1020 and its large 1/1.5-inch 41MP sensor the Lumia 925 has lost its status as Nokia's flagship smartphone but given its street price is currently almost $250 lower than the 1020's it can still be a compelling device for the price-conscious mobile photographer. Read on to find out how it performed in DxO's comprehensive studio tests.
Nokia Lumia 925 headline specification:
With a DxOMark Mobile score of 73 the Nokia Lumia 925 finds itself on the 6th position on DxO's smartphone ranking. It scored just one point less than its bigger brother, the Lumia 1020, and is trailing four points behind the current top-rated camera phone, the Nokia 808.
The DxOMark team report that the Nokia Lumia 925 captures images with "good overall exposure" and that "in extreme low light conditions, exposure stays good when other camera phones fail". The image output shows "very low noise levels with no chroma component" and the flash performance is very good, with "good exposure, color, white balance, texture and noise".
On the downside: Images show "noticeable color shading with indoor lighting and sometimes outdoor, low-contrast details is badly preserved, especially in low light and in low light conditions, exposure time is too long which may cause motion blur." The 925 occasionally also struggles with white balance which "is sometimes blueish outdoors or with fluorescent lighting."
In video mode, DxOMark's engineers reported that the Nokia Lumia 925 offers "good texture reproduction" and that the "video stabilization is reliable in both bright and low light". On the downside there are "instabilities in white balance when changes occur in light conditions or scene content, unpleasant sudden corrections in video stabilization during walking motion and visible color fringing".
The DxOMark team found that the Nokia Lumia 925's images show "good overall exposure and -pleasant colors outdoors". "In extreme low light, the exposure stays good thanks to longer exposure time". However, there is also "strong color shading with some illuminants (e.g. fluorescent lightings), the white balance is sometimes blueish outdoors" and shows "some variation with indoor lighting".
Overall DxOMark awarded the Nokia Lumia 925 scores of:
*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.
DxOMark's engineers reported that the Nokia Lumia 925 image output shows "very low noise levels, even in low light conditions, thanks to longer exposure time and no chroma noise". On the other hand "low-contrast detail is badly preserved, especially in low light and in low light conditions, exposure time is too long (1/4s compared to 1/15s for other camera phones at 10 lux), which can cause motion blur".
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.
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 Nokia Lumia 925 are shown below:
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%). The overall score for the 925 is 79/100 in bright light and 65/100 in low light.
DxOMark scored the Nokia Lumia 925 72/100 overall for its flash performance, deducting points for strong corner shading.
DxOMark engineers put phone cameras through a similarly grueling set of video tests, and you can read their full findings on the DxOMark website here. We'll simply summarize for you. DxOMark found the Nokia Lumia 925 to produce good texture and offer efficient image stabilization in video mode. However, the white balance can be unreliable when the light changes, the OIS can overcorrect when walking while recording and there is some visible color fringing in the video footage.
After the launch of the Lumia 1020 the 925 might not be Nokia's flagship smartphone anymore but at an almost $250 USD savings compared to the 1020 means it can still be a great alternative for cash-conscious mobile photographers.
The Nokia Lumia 925 captures images with good exposure, even in very low light, and low noise levels across the ISO range. Flash performance is also very good.
On the downside images can show color casts under artificial light and low-contrast detail is lost through noise reduction, even in bright light. Extremely slow shutter speeds in low light also increase the risk of image blur through camera shake.
In video mode the Lumia 925 captures good detail and offers very efficient image stabilization but the white balance can struggle when light conditions change, there is visible color fringing and the OIS has a tendency to overcorrect when you walk while recording a video. For a more detailed analysis, visit www.dxomark.com.
The Tamron 50-400mm F4.5-6.3 Di III VC VXD boasts an impressive zoom range in a relatively compact package. How does it perform? We took a look.
What’s the best camera for around $2000? These capable cameras should be solid and well-built, have both speed and focus for capturing fast action and offer professional-level image quality. In this buying guide we’ve rounded up all the current interchangeable lens cameras costing around $2000 and recommended the best.
What's the best camera for shooting landscapes? High resolution, weather-sealed bodies and wide dynamic range are all important. In this buying guide we've rounded-up several great cameras for shooting landscapes, and recommended the best.
If you're looking for the perfect drone for yourself, or to gift someone special, we've gone through all of the options and selected our favorites.
Most modern cameras will shoot video to one degree or another, but these are the ones we’d look at if you plan to shoot some video alongside your photos. We’ve chosen cameras that can take great photos and make it easy to get great looking video, rather than being the ones you’d choose as a committed videographer.
Although a lot of people only upload images to Instagram from their smartphones, the app is much more than just a mobile photography platform. In this guide we've chosen a selection of cameras that make it easy to shoot compelling lifestyle images, ideal for sharing on social media.
|Lumière croisée by AM91210|
from My Best Photo of the Fortnight
|Reina by Great Bustard|
from in the style of a Large Format Portrait
|_SDI2370bw by rick decker|
from Crashing Wave
Copy That for Mac features integrated checksum verification, detailed reporting, presets, thumbnail support, file renaming and automated error detection.
The winners and finalists have been announced for the Siena Drone Photo Awards. We've rounded them up into a photo gallery for your viewing pleasure.
The $150 lens is fully manual and is available for Canon EOS-M, Fujifilm X, Micro Four Thirds and Sony E-mount camera systems.
The Lumix S family of full-frame primes keeps growing. The 18mm F1.8 is the newest member of Panasonic's lens lineup. Check our our sample gallery to see what it's capable of.
Peep some pixels from the hefty 100 megapixel files created by the new Hasselblad X2D 100C, as we prepare our DPReview TV review of the camera.
About 95% of Earth's oceans haven't been observed. Researchers at MIT have built a battery-free, wireless underwater camera that may help scientists explore more of the oceans.
Drone manufacturer DJI has moved its staff into an innovative and masterfully-designed new building in Shenzhen, China. Here is a first look.
We (metaphorically) sat down with Brandon Faith of Baggen Photos to ask him a few questions about what it's like to photograph motorsports events with his Crown Graphic large format camera.
Sony's new 320GB and 640GB 'Tough' CFexpress Type A cards are due out next month and while the 640GB card will offer the most storage of any Type A card to date, it doesn't come cheap.
Adobe's Photoshop and Premiere Elements apps make editing photos and videos easy for users of all skill levels. The latest versions add more editing tools, more AI features and improved performance.
The Sony FX30 is an explicitly video-focused camera, but could its technology herald a refresh of the company's APS-C stills line-up? We have a look at what that might mean.
The lens offers a constant F2.8 aperture through a rather unique focal length range for full-frame camera systems. It’s expected to be available starting October 27, 2022 for $699.
Can AI overcome the physical limitations of smartphone sensors and lenses? A Qualcomm executive thinks so, thanks in large part to improvements in processing power, hardware and artificial intelligence.
We're starting to see cameras offering 'open gate' video recording, so what is this tool and when is it useful?
The Sony FX30 is a 4K/120p-capable Super35 / APS-C cinema camera that wants to take the battle to the likes of Panasonic's GH series.
Sony's FX30 Super35/APS-C Cinema Line camera is effectively a crop-sensor version of the company's full-frame FX3 camera with sensor-based image stabilization, oversampled 4K/60p capture and '16-bit' Raw output and more.
If you've ever wanted to become an action figure, Hasbro is providing you the opportunity with its new 3D-printed Selfie Series action figures.
When you store photos on the cloud, you expect them to remain safe for a long time. However, some Google Photos users were scared over the weekend when they realized that their photo libraries had become corrupted.
DALL-E's Outpainting feature uses AI to expand existing images and artwork. Ad agency Ogilvy Paris has used Outpainting to expand Johannes Vermeer's famous painting, 'The Milkmaid.'
iOS 16.0.2 addresses, amongst other bug fixes, a problem wherein the second-generation sensor-shift image stabilization tech was causing camera shake issues in some third-party apps.
For the past eight years, the Library of Congress has been working on figuring out the subjects in a large collection of film, TV and music photos. Many of the mysteries have been solved. However, 17 photos have eluded the LC's best efforts, and the public's help is needed to help put names to the final unknown faces.
After having to pull the initial firmware update last month due to an issue that caused some units to stop working, Sony has re-released firmware version 1.1 for its a7 IV full-frame mirrorless camera.
Sigma's latest wide Art-badged prime for full frame is capable of some stunning landscapes. Check out a new batch of sample photos in the gallery.
Winners for this year's annual Comedy Pet Photo Awards have been announced.
While visiting the team in Seattle, Chris and Jordan attempt to eat some chowder. It's difficult. Also, this week they are puppets.
Meike has released its first adapter for Nikon Z cameras. The new MK-EFTZ-B adapter allows Nikon Z users to attach Canon EF and EF-S lenses to their cameras, complete with autofocus and automatic exposure functionality.
The Canon 5D Mark II was released in November 2008. Since then, a photographer used theirs to capture nearly 2.3 million images, which is an average of about 450 photos per day if they shot every single day. The camera is still going strong for its new owner.
Capture One for iPad users cvan now connect their camera, wired or wirelessly, to their iPad for quick image transfers without the need for memory cards and readers.
Digital film scanners can be pricey, so Lomo's latest scanners let shooters do it themselves. Whether you have a digital camera, or simply a smartphone, there's a DigitaLIZA that'll work with your kit. But are the results any good? Let's find out.
The Leica Q2 'Dawn' is the same camera on the inside, but features an all-black paint job and a special Japanese-woven fabric wrap produced by Japanese brand, Hosoo.