In recent years, the progress of domestic machines in terms of workmanship, systems, functions, etc. is obvious to all, but Xiaomi/Huawei/Meizu, which has the largest domestic shipments, has not been able to shake off the inherent impression of "poor photography". Due to technology and cost factors, except for Sony's "take away" CMOS, the algorithm tuning of domestic brands has always been significantly different from that of Samsung, Apple, LG and other international giants.
From 2014 vivo Xshot , by 2015 Nubia Z9 、 One plus two To this generation Xiaomi 5, Huawei P9, One Plus 3 The situation of poor domestic photography has been gradually improved, and some machines even have the strength to compete with international manufacturers. The main purpose of this horizontal review is to compare the gap between the current domestic top model and the active photography benchmark.
Comparison model
The samples in this paper are from the photo taking part of the one plus three detailed evaluation. One plus three is used as the ruler through the two batches of samples, so that we can compare the gap. Representatives of domestic brands include:
Xiaomi 5, which has the strongest comprehensive discrimination in China in active service;
Huawei P9, famous for color mixing and double photography;
One plus two of the top three domestic photographers in the previous generation;
At the press conference S7 One plus three for comparison.
The photo poles at different positions include:
Belief benchmark famous for balance and stability iPhone 6s Plus ；
With night vision instrument level ultra weak light performance S7 edge ；
Discriminatory and omnidirectional hegemonic LG G5 。
Except that one plus two use Howell's OV13860 sensor, some S7/S7 edges use ISOCELL In addition, the PK of flagship photos is basically the internal battle of Sony's own sensors.
Investigation items and scales
The core of mobile phone photographing is the photographing experience and imaging effect. The main factors that affect the experience are:
speed And also includes focusing speed, shutter response and imaging speed;
Film rate , the probability of destroying the film by shaking hands;
Camera app Degree of automation , whether it can identify the scene with large light difference and weak light, and automatically trigger HDR and night view mode;
In addition, the camera app is easy to use, and the viewfinder box has problems such as delay/drag/frame drop/noise full screen, but the priority is not as high as the first three.
The imaging effects mainly include:
White balance and photometry In many scenes such as sunlight/light/weak light and extremely weak light, whether the white balance (picture color and wind direction) and picture brightness can be close to the naked eye,
Discriminative power Roughness can be understood as clarity, and the sharpness, detail and naturalness of the picture must be taken into account at the same time
Tolerance , that is, the ability to show details in the light and dark at the same time. For mobile phones, this is basically equivalent to whether the HDR effect is natural and harmonious, whether there are ghosts, white balance deviation, and decline in discrimination after synthesis
The remaining assessment contents include Noise control , Color saturation (The closer to the naked eye, the better, but Samsung and Huawei will be able to raise it recently to please users) Lens quality (including edge degradation control, anti glare, atomization control, wide-angle and pillow distortion control, etc.).
Although everyone's requirements for photographic experience are almost the same, for different users, the proportion of different imaging projects is completely different: for example, the number of Maoists who like to enlarge photos and scan will definitely put discrimination first, and the proportion is very high; The party in the circle of friends attaches great importance to tolerance, white balance, saturation and other items, but the requirement of discrimination is not high. So the comparison will According to different project segments, it would be better for everyone to focus on what they care about 。
PS： The author is a classic Mao Zedong (what's the difference between a photo that can't be enlarged and a salted fish?), and the details will be larger. You can see the noise control and dark details in the details.
Photo experience
Focusing speed: among the seven flagship machines, one plus two, G5 and P9 have no phase focusing (which is an important reason why they are equipped with laser focusing), and the speed is slightly slow. Other machines have phase focusing, which is faster. Among them, S7 edge is the most exaggerated. It is almost impossible to detect the focusing process. There is no obvious process of pulling the bellows like other machines under extremely weak light.
Shutter response&imaging speed&film rate: except G5, other machines are relatively fast, which is the main reason why G5 photography experience is criticized; In terms of yield, P9 has no optical anti shake. Even though the safety shutter speed is faster, the film yield is still slightly lower than other machines, and other machines have not opened a big gap;
HDR/night view mode processor speed: After G5 triggers HDR or night view mode, the shutter response speed will decrease. Huawei P9 and Xiaomi 5 perform slightly better, and the shutter response of other machines is almost unaffected. However, when you view the photos immediately after taking photos, you can generally find that the mobile phone is actually processing samples in the background.
Degree of automation: except that the HDR mode of Huawei P9 needs to be manually turned on (the night view mode can be automatically triggered), one plus two does not have the automatic HDR option, and can other flagship ships automatically trigger the HDR and night view modes (one plus two does not have the night view mode)
White balance and photometry
Scenario 1
Scenario 2
Scene 2 central zoom in
Scenario 3
Scenario 4
Scenario 5
Scenario 6
Scenario 7
The white balance and saturation of one plus three in sunlight is completely the replica S7. The white balance under light and weak light is relatively accurate, which is more accurate than the conventional P9 with a slightly yellow hue. Far away from Xiaomi 5 with a significantly yellow green white balance, HDR processing is more natural.
The white balance of Huawei P9 tends to be yellow and red. The photometry is conventionally weaker than that seen by the naked eye. It seems that the contrast will be higher, but there will be some loss of dark details.
Xiaomi 5 is accurate in light measurement, but its white balance stability and accuracy are significantly lower than those of the other six flagship ships, and the overall color is yellowish green. After triggering the night view mode, there will be an unusually large green color. In addition, the HDR usability of Xiaomi 5 is too low, which may lead to problems such as too bright hair color, obvious deviation of white balance, and poor discrimination. Therefore, it is not recommended to turn on this function.
Algorithm is the core field of photography. Excellent parts cannot be piled up alone. Xiaomi 5 is a typical machine that does not exert all the strength of hardware. Huawei's white balance and color tuning also performed well, but perhaps because of its model positioning (Leica filter?) Huawei P9 performs well, but there is still room for improvement.
When One Plus Two just came into the market, we made a review. At that time, the completion of hydrogen OS was still very low, and even the use experience of preview after taking pictures was not good. The problem of HDR algorithm could even be compared with that of Xiaomi. But by the time of One Plus Three, the system and camera tuning had made significant progress and had surpassed P9. Compared with Xiaomi Meizu, whose photography problem has lasted for generations, Yijia is obviously more diligent in the photography part.
Discriminative power
PS： Click the picture to view the large picture
Yijia's camera app has an HD mode. When it is turned on, the detail noise will be smeared very clean and the discrimination will be improved to a certain extent. After 8-9 consecutive photos are taken, there will be a prompt that they are being processed in the background and cannot press the shutter again, which has little impact on daily use.
Scene 1 central zoom in
Scene 2 central zoom in
Scene 3 central zoom in
Indoor scene 4 central magnification
Indoor scene magnified in 5 centers
Indoor scene 6 center magnification
Enlarge the indoor scene in the center of 7
Weak light scene 8 central amplification
Weak light scene 9 central amplification
Weak light scene 10 central amplification
Weak light scene 11 central amplification
Weak light scene 12 Zoom in above the center
Weak light scene 12 central amplification
In terms of discrimination, one plus three can surpass many S7s of 12 million pixels in strong light. The picture details and sharpness of Xiaomi 5 and Xiaomi 5 are competing, while Huawei P9 is a long way behind..
In the light scene, one plus three can still maintain stronger discrimination, while Xiaomi 5 has a certain degree of degradation of discrimination, and S7 still suffers from low pixels. Under weak light, the S7 edge began to turn over, and its analytical power exceeded one plus three, but the range was not large. Although Xiaomi 5's analytical power remains intact after triggering the night view mode, the white balance of the moving noise is seriously green, resulting in a sharp decline in the availability of samples. However, Huawei P9 is still in an awkward situation of insufficient discrimination.
Comparison with benchmarks
PS： Click the picture to view the large picture
Scenario 1
Scene 2 central zoom in
Scene 3 central zoom in
Scene 4 central zoom in
Scenario 5
Scene 5 Central zoom in
Indoor scene 6 central magnification
Indoor scene 7 central magnification
Enlarge weak light scene 8
Weak light scene 8 central amplification
Weak light scene 9 central amplification
Weak light scene 10
Enlarge the left center of weak light scene 10
Weak light scene 11 central amplification
Low light scene 12
Weak light scene 12 Zoom in above the center
Weak light scene 12 central amplification
The performance of one plus three is far stronger than expected, so we have compared it with the previous generation's one plus two, the belief benchmark iPhone 6s Plus and the peak of discrimination LG G5. The metering and white balance of the two generations are relatively close, and there is no problem of insufficient brightness of iPhone under weak light, but the white balance accuracy is slightly weaker than that of iPhone.
In terms of discrimination, the one plus two with HD mode turned on has more discrimination than the iPhone in strong light and light scenes through the heavy handed sharpening algorithm, but still lost to the one plus three with higher pixels, but there is a certain gap between them and the G5 standing at the top of the discrimination.
In the weak light scene, although the unit pixel size of one plus three is smaller than that of one plus two, its analytical power is smaller than that of the previous generation. Although the discrimination is still not comparable to the abnormal G5, the picture purity is surprisingly high, and the discrimination is very close to the iPhone 6s Plus.
summary
For the Maoist party like the author, one plus three is the most powerful domestic mobile phone for taking pictures, and there is no one. On the basis of the previous generation, it has greatly improved its overall analytical power, and its weak light performance has increased rather than decreased. In addition to excellent noise control, its overall analytical power has easily crushed Huawei P9, Xiaomi 5 and other domestic rivals.
In general, the domestic flagship of this generation is trying to narrow the gap with international manufacturers. Both OnePlus and Huawei have made significant progress in algorithm. Xiaomi 5 has gained the overall discrimination power second only to OnePlus 3 with good hardware (the weak light scene has lagged behind), but the space for algorithm tuning is huge. Perhaps the next catch up goal of domestic brands in the camera field is video (the subtext is that the optimization and anti shake of domestic flagship video are not good...).
