Xiaomi 8 and Xiaomi MIX 2S use the same camera hardware, both of which are optical shake proof IMX363 and F2.4 aperture S5K3M3. Xiaomi claimed to raise his DxOMark photo score from 101 to 105 by polishing the algorithm. This time, we find the iPhone X and Samsung Galaxy S9+(S5K2L3) as the ruler for comparison.
It should be noted in advance that by the deadline of June 2, the Xiaomi 8 in our hands was the top secret version of MIUI 10 (the development version that blocked some running apps and ISO information confusion?), which may be slightly different from the system version after the launch.
Welcome to write down your photo ranking in the comment area. This time, the original will be uploaded to Love to play computer games You are welcome to visit the sample library of . If you browse on the official website of Ainongji, you can click the picture to view the large picture. All mobile phones are in the default automatic mode, and the focus of the sample is in the middle.
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: Smoothness of shooting and film consistency , whether the viewfinder box has problems such as delay/shadow dragging/frame dropping/noise full screen; speed , including focusing speed, shutter response, and imaging speed; Film rate , the probability of destroying the film by shaking hands; Intelligence , whether it can identify the scene with large light difference and weak light, and automatically trigger HDR and night view mode.
The imaging effects mainly include:
White balance and metering: In many scenes such as sunlight/light/weak light and extremely weak light, whether the white balance (picture color and wind direction) and brightness can be close to the naked eye;
Tolerance: That is, the ability to show the details of light and dark at the same time. For mobile phones, this is basically equivalent to the HDR effect, including the size of processing power, whether the processing is natural and harmonious, whether there is ghost after synthesis, white balance deviation, and the decline of discrimination;
Discrimination: Roughness can be understood as clarity, and the sharpness, detail and naturalness of the picture must be taken into account at the same time;
The remaining assessment contents include Noise control, color saturation Lens quality (including edge degradation control, anti glare, atomization control, wide-angle and pillow distortion control, etc.).
Good photography has objective criteria, However, the high saturation, high contrast and filtering of mobile phone imaging in recent years indicate that the mainstream has begun to develop in a pleasing direction. Even the iPhone began to deviate from the official restoration route, and various Leica and AI filters appeared, which added the color of "aesthetic metaphysics" to camera photography.
The core of photograph comparison is always the proof itself, but for the same set of comparison proof/the same objective fact, people with different evaluation systems, preferences and ideas, it is inevitable that there will be different, or even opposite views. For different users, the proportion of different projects is completely different: the Maoist Party, which likes to zoom in and scan, will definitely put discrimination first, and the proportion is very high; If it is mainly used for sunning in the circle of friends, it should pay more attention to tolerance, white balance, saturation and other items; It's good to like the final effect, Just focus on what you care about 。
Features and experience
In terms of photographing experience, iPhone X is still an unshakable existence. The speed, shutter response and film rate of HDR and night scene multi frame synthesis are impeccable, and even S9+has a certain gap with it. and The photography experience of Xiaomi 8 is slightly improved than that of Xiaomi MIX 2S, and the jelly and shadow shooting are slightly improved, but still at the lower middle level.
Although Xiaomi's low light viewfinder brightness has caught up with Samsung and Apple, there is nothing wrong with its function and interaction, The focusing success rate and film rate are not much behind S9+, but the film speed and shutter response are slow, Once multi frame synthesis is triggered, the shutter response and film forming speed will decline significantly, which reminds people of LG that "good film forming but poor photography experience" a few years ago. In addition, in the test version system of Xiaomi 8, the processing speed of virtual samples is slower than that of MIX 2S (the computing pressure increases after AI is added?)
HDR compared with normal mode in weak light
HDR compared with normal mode in weak light
Xiaomi 8 also inherited the problem of Xiaomi's MIX 2S that "in low light, the automatic HDR will degrade the image". After the HDR is triggered in low light scenes, there is no increase in tolerance, but the application is more forceful and erases some details.
In addition, when the zoom of Xiaomi 8 is 2x, the switch between the main camera and the auxiliary camera is more active than that of Xiaomi MIX 2S (switch only when the light is very weak). In some weak light scenes, you can see the switch between the main camera and the auxiliary camera when taking pictures (of course, this may only be a bug in the test version system). In weak light, the effect of main camera digital cutting is better than that of sub camera, which is also the use logic of most telephoto lenses.
Daytime scene
Day Scene 1
Day Scene 2
Day Scene 3
Daytime scene 3 central magnification
Zoom in below the center of day scene 3
Daytime scenario 4
Daytime scene 4 central magnification
Daytime Scene 4 Zoom in above the center
Day Scene 5
Daytime scene 5 central magnification
Light scene
Light Scene 1
Light Scene 2
Light Scene 2 Center Enlarged
Light Scene 3
Light Scene 3 Center Enlarged
Light Scene 4
Light Scene 4 Center Enlarged
Light Scene 5
Light Scene 5 Center Enlarged
Light scene 5 zoomed in on the left in the center
Light Scene 6
Light Scene 6 Center Enlarged
Light Scene 7
Light Scene 7 Center Enlarged
Light Scene 7 Zoom in above the center
Light scene 8
Light scene 8 central zoom in
Weak light/extremely weak light scene
Weak light scene 1
Central amplification of weak light scene 1 (noise reduction is still the strength of S9+)
Weak light scene 2
Weak light scene 2 central amplification
Weak light scene 3 central amplification
Zoom in above the center of weak light scene 3
Weak light scene 4
Weak light scene 4 central amplification
Weak light scene 5
Weak light scene 6
Zoom in at the top center of weak light scene 6
Weak light scene 6 central amplification
Long focus and virtualization
Virtual contrast 1
Virtual contrast central amplification
Long focus contrast 1
Long focus contrast 1 central amplification
Long focus contrast 2
Long focus contrast 2 central amplification
Long focus contrast 3
Long focus contrast 3 central amplification
Long focus contrast 4
Long focus contrast 4 central amplification
Zoom in at the left center of telephoto contrast 5
Long focus contrast 5 central amplification
Long focus contrast 6
Long focus contrast 6 central amplification
summary
In a word, Xiaomi 8 has really improved compared with Xiaomi MIX 2S, and it has become the leading level of domestic and international models. The gap of "DxOMark increased by 4 points" is not as big as expected:
The wide-angle field of vision of the two Xiaomi is the same, close to S9 with an equivalent focal length of 26mm, and slightly larger than that of the iPhone (28mm). Glare control doesn't make much difference, and the problem of side effects caused by automatic HDR in low light has also been retained.
Two machine White balance and saturation are very close The security shutter is still 1/13 second. The main change is the improved contrast , but it is difficult to detect if they are not put together. In addition, the exposure reduction and sharpening of light and weak light scenes are increased, but the degree is also very slight. These changes finally make the discrimination slightly improved (really algorithm polishing), and the sub camera gap between the two Xiaomi cameras is smaller.
On the whole, Xiaomi has surpassed iPhone in discrimination, and many scenes can compete with S9+. but The accuracy of photometry and white balance, the effect of automatic HDR and other details need to be improved 。
The biggest gap between Xiaomi and Samsung Apple is actually the sub camera. Although Xiaomi and Samsung use the same sensor, in addition to the lack of optical anti shake, Xiaomi's actual focal length is shorter (Xiaomi's sub camera equivalent focal length is 5.2mm, iPhone X and S9+are both 6mm), and the actual optical zoom is only about 1.8 times, The power of discrimination is weaker. In addition, there are also many holes to be filled in the consistency of light metering and white balance between the main and secondary cameras 。
In terms of DxOMark's camera sub item score, Xiaomi 8 has improved in terms of false image in photography, but the video score drop is also false image, which is very metaphysical
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