DxOMark Mobile Report: Motorola Droid Turbo 2
The Droid Turbo 2 is Motorola's latest high-end model for US carrier Verizon. With Sony's 1/2.4-inch 21MP IMX230 sensor and an F2.0 aperture the camera specification is pretty much identical to the Moto X Style but the new model comes with a more powerful Qualcomm Snapdragon 810 chipset, a shatter-proof display and a massive 3760 mAh battery that, according to Motorola, is good for 48 hours of battery life. At 5.4 inches the display is a touch smaller than the X Style's 5.7-inch screen but offers the same Quad-HD resolution. A microSD slot is on board for memory expansion and like other high-end Motorola devices the Droid Turbo 2 can be ordered with wooden or leather backs and is customizable via the MotoMaker website.
With a DxOMark Mobile score of 84 the Droid Turbo 2 achieves the same score as the Google Nexus 6P and places itself on the number four spot in the DxOMark smartphone rankings, only topped by the Sony Xperia Z5 , the Samsung Galaxy S6 Edge and the Nexus 6P. The DxOMark team reports that the Droid images show "very good detail preservation in outdoor conditions" and "good white balance and generally pleasant colors". "Pictures are well exposed" and "noise is barely visible in outdoor conditions".
On the downside, "fine details are lost in low light conditions, ghosting and other artifacts are sometimes visible" and when shooting with flash "strong luminance shading and chroma noise is visible in the corners".
In video mode the DxO team liked the "good stabilization, fast white balance and exposure adaptation and pleasant color rendering". The team also found that "detail is well preserved". However, "in low light, strong luminance noise and chroma noise is visible, particularly in the corners, autofocus instabilities are visible and the camera has difficulties tracking objects". The DxoMark team also found that "in low light autofocus is sometimes slow to trigger after a scene change".
Color, Exposure and Contrast
The DxOMark team found that when shooting with the Motorola Droid Turbo 2 "pictures are well exposed" and show "good white balance and generally pleasant colors". On the downside, "some highlights are occasionally blown in bright outdoor scenes" and "some white balance and exposure irregularities" can be observed in low light.
Overall DxOMark awarded the Motorola Droid Turbo 2 scores of:
- 4.5 out of 5 for Exposure
- 4.6 out of 5 for White Balance accuracy
- 3.8 out of 5 for Color shading in low light*
- 4.2 out of 5 for Color shading in bright light*
- 3.0 out of 5 for Color Rendering in low light
- 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.
Noise and Details
DxOMark's engineers reported that the Motorola Droid Turbo 2 images show "very good detail preservation in outdoor conditions" and that "noise is barely visible in outdoor conditions". However, "some luminance noise is visible in low light conditions".
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 (such as fine foliage, hair or 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's 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 edges are sharp and if fine details are visible. In-camera processing means that 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 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 the 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 and Detail Perceptual scoring
- Texture (bright light): 5.0 out of 5
- Texture (low light): 3.6 out of 5
- Noise (bright light): 4.3 out of 5
- Noise (low light) 3.3 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 have an impact on the visual appeal of the end result. DxOMark engineers measure and analyze a range of artifacts. Their findings after testing the Motorola Droid Turbo 2 are shown below:
- Ghosting sometimes visible in HDR mode
- Some blue sky saturation in bright outdoor scenes
- Noticeable color fringing in high-contrast scenes
- Slight ringing
- Sharpness 4.3 out of 5
- Color fringing 3.4 out of 5
- Ringing center 7.5%
- Ringing corner 2.4%
- Max geometric distortion -0.2%
- Luminance shading 16.7%
Distortion and Chromatic Aberrations
DxOMark also tests autofocus accuracy and reliability by measuring how much the acutance - or 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 dependent 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%). Using the 8MP equivalent setting, the Motorola Droid Turbo 2 performs very well at all light levels. The overall score is 93/100 in bright light and 91/100 in low light.
- Accurate and stable trigger mode in all lighting conditions
- Accurate and stable auto mode in low light conditions
- Fast autofocus in bright light conditions
- Slight irregularities in low light trigger mode
- Slight overshoot in low light preview
The Motorola Droid Turbo 2 comes with a dual-LED flash and DxOMark scored the camera 80/100 overall for its flash performance.
- Good exposure with and without additional light sources
- Good detail preservation
- Generally accurate white balance and good color rendering
- Strong chroma noise visible in the corners
- Strong luminance shading without additional light source
- Slight color shading
Overall DxOMark Mobile Score for Photo: 84 / 100
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. Overall, DxOMark found the Motorola Droid Turbo 2's video footage to be well stabilized, with good good detail and colors. White balance and exposure adapt quickly to changing scenes but the AF shows some instabilities and noise becomes visible in low light.
- Detail is well preserved
- Good stabilization
- Fast white balance and exposure adaptation
- Pleasant color rendering
- In low light, strong luminance noise and chroma noise is visible, particularly in the corners
- Autofocus instabilities, difficulties when tracking objects
- In low light, the autofocus is sometimes slow to trigger after a scene change
Overall DxOMark Mobile Score for Video: 84 / 100
DXOMark Image Quality Assessment
With a DxOMark Mobile score of 84 the Motorola Droid Turbo 2 achieves the forth highest score in the DxOMark smartphone rankings, being beaten only by the Sony Xperia Z5, Samsung Galaxy S6 and google Nexus 6P.
The DxOMark team liked the Droid's good exposure and pleasant color. In bright light they measured low noise levels and very good image detail. However, they also noted a loss of detail in low light conditions and chroma noise when shooting with flash. The latter is also noticeable in low light video but general video quality is good, with very efficient digital image stabilization. For a more detailed analysis, visit www.dxomark.com.
|Moon 99% D55 C14 St-Zénon 20170806 DP by MarioSS|
from Best Picture of the Week
|Reeds on lake by kkardster|
from Abstracts in Nature
|Florence & the Machine by Dutch Newchurch|
from Second chances..
Curious how the Sony a9 performs underwater? Our friends at Backscatter took the camera diving off the Baja California coast, to find out how it handled shooting great white sharks.
While most of the DPReview crew put away our cameras and just watched the celestial event, Rishi decided last-minute to hack together a rig and capture a few shots.
Defunct Russian camera maker Zenit is making a comeback, and they're planning to release a full-frame mirrorless camera in 2018.
The days where you're more or less locked into premium or first-party flash units has gone. They're less than $50 now, so there's one less excuse not to get one. Here's our case for adding one to your kit, and a few pointers to get you going.
If you're shooting the solar eclipse here's a hint: don't fry your camera's sensor. Use a proper solar filter that offers at least 16 stops of light filtration, along with UV and IR filtering. More important? Don't look at it unless you've got solar filters. Sensors can be replaced, your retinas can't.
Photographer Rick Wenner recently captured an odd event called the Race of the Gentlemen with a rather odd camera: The Phase One XF IQ3 Achromatic, the world's only 101MP black-and-white digital back.
Buying used is a good way to save some dough, and with the right precautions you can protect yourself from falling victim to a scam.
This two-part video series takes a deep dive into the world of dynamic symmetry and geometric composition, using iconic photographer Henri Cartier-Bresson's brilliant photographs as a guide.
Award-winning photographer Jeremy Cowart tells the moving story behind this drone photograph, captured in the aftermath of the devastating wildfire in Gatlinburg, TN in 2016.
Happy 2017 World Photo Day! We asked everyone on staff at DPReview to share one photo that they took within the last year that makes them jazzed on photography. Here's what we chose.
French President Emmanuel Macron has lodged a legal complaint against a paparazzo who snuck onto the president's private vacation property to take pictures.
Ever wonder what the difference is between compressed, uncompressed and lossless compressed Raw files? Photography Life's Nasim Mansurov breaks it down for you in this informative article.
The oldest known portrait of a US president was just discovered after over a century in storage. It's going up for auction in October, where it's expected to fetch between $150,000 and $250,000.
If you're using the popular Sigma 24-70mm F2.8 Art lens with Sigma's MC-11 converter, listen up: you'll want to update your lens and converter firmware ASAP.
If you've heard it once, you've probably heard it a thousand times: never check in your camera gear when flying. This shattered $11,000 lens is what can happen when you do.
Lensrentals just did its first Cine lens comparison, pitting five top-notch 35mm primes against each other: the Zeiss CP.2 35mm T2.1, Canon CN-E 35mm T1.5, Sigma 35mm T1.5 FF, Rokinon Xeen 35mm T1.5 and Schneider Xenon 35mm T2.1.
A team of Google researchers have found that slightly warping watermarks when embedding them into images can help prevent automatic removal.
You don't have to empty your savings account to take your photography to the next level. These cheap buys cost about $50 or less, and come with outsized benefits for your photography.
Joey L, Dani Diamond, Brandon Woelfel and Jessica Kobeissi go head-to-head in an episode of "4 photographers shoot the same model."
The latest flagship phone from Asus combines a 12MP 1/2.55" Sony IMX362 main sensor with a smaller Sony IMX351 chip for 2x zoom and a background-blurring portrait mode.
The company behind popular photo editor Picktorial 3 just released the X-Pack: a preset package that allows you to add Fuji's in-camera film simulation profiles to your RAF files in post.
Photoshop. GoPro. Every once in a while a product emerges that defines a category. And sometimes, it vanishes just as quickly as it arrived on the scene. This week's Throwback Thursday remembers the Flip, the pocket camcorder everyone had – until they didn't.
The Nokia 8's dual-cam combines the image data from a 13MP RGB sensor and a 13 monochrome chip for better detail, improved dynamic range and lower noise levels.
The company behind retail giant B&H Photo has agreed to pay out $3.2 million in monetary relief and back wages to settle a discrimination and harassment case from 2016.
After a popular Facebook teaser and some studio portrait samples, Godox has finally officially released the Godox A1 smartphone flash and flash trigger. Cheap, versatile and innovative, color us intrigued.
Canon’s EOS 5D Mk IV has won the European Imaging and Sound Association’s Professional DSLR of the Year award, making this the third year in a row that the brand has beaten Nikon to the top spot in the professional camera category.
A photograph and quote tweeted out by former president Barack Obama has officially become the most popular tweet of all time, receiving over 1.3 million retweets and 3.4 million likes.
Edward Weston was one of the most influential photographers of the 20th century, and in this episode of Advancing Your Photography we learn the extreme technique he used to capture one of his most famous still life photos.
Instagram just released a small update that will make a huge difference if you're active on the photo sharing app: threaded comment replies.
Venus Optics has announced the price and delivery date of the second lens to join its Zero-D line up: the 15mm F2 for Sony’s E mount. A lens they've dubbed, "the world's fastest 15mm rectilinear lens for full-frame."