In the first half of 2018, all domestic flagship products have been launched, and Hammer Nut R1, One Plus 6, Meizu 15 and Xiaomi MIX 2S have their own supporters. No matter how touted by manufacturers and media, the final decision to rank is still the sample itself.
But for the same set of comparison proofs/the same objective fact, people with different evaluation systems, preferences and ideas will inevitably have different, even opposite views. 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 。
Hardware parameter analysis
Camera hardware of 4 mobile phones, sorted from small to large according to the unit pixel size of CMOS:
One plus six ： IMX519， In addition to DCAF dual core focusing, the parameters are close to those of IMX240/S5K2P2 on S6/Note 5 that year. yes Typical High Pixel Scheme Under the same conditions, its advantage is that the discrimination is better when the light is good, and its disadvantage is that after the light becomes worse, the image quality degradation and saturation decline will be more obvious than the background scheme (especially the unit pixel size). IMX376K Sub camera, only responsible for virtual depth ranging on one plus six , does not participate in zoom or weak light imaging.
Nuts R1 and Millet MIX 2S: The main camera is IMX363 with optical anti shake, which features full pixel dual core focusing and 1.4 μ m unit pixel, second only to the active IMX377/378/380 series. The biggest difference between the two cameras is the sub camera. Xiaomi is a long focus sub camera, while the sub camera of NutR1 uses a conventional focus lens although the sensor specification is higher, Like Yijia, the sub camera is responsible for the depth of field and does not participate in imaging 。
Meizu 15: Huawei In addition to P20 Pro, the camera hardware parameters of active mobile phones are the best, The same model as P20 with optical anti shake. The last manufacturer to equip the IMX377/378/380 series 1/2.3 inch outsole sensor with optical anti shake is HTC. However, the U11 has been converted to the optical anti shake 362 scheme. In addition, Meizu also provided a secondary camera with a 3x lossless zoom, which is larger than Xiaomi's 2x light change, but in the following actual comparison, the extra multiple does not seem to have brought much improvement.
The off topic discussion is whether P20 has optical anti shake. This is still controversial, and there is no direct evidence. The positive evidence is the comparison of anti shake shooting on the network (Sony's electronic anti shake can also achieve similar effects) and the official AI anti shake evolution chart PPT. The negative evidence is that the P20 Pro does not have optical anti shake, but it also supports AI anti shake, as well as customer service replies and comments released by some netizens, but neither side is direct evidence. Insiders are welcome to give advice in the comment area or Weibo.
Update 18-0528: The author personally believes that P20 does not have optical anti shake. After all, the lens of a real camera does not move according to shake like an optical anti shake machine. Of course, there were also cases where the camera did not trigger the optical anti shake mechanism when the domestic mobile phones were just launched into the era of optical anti shake.
Here are two interesting messages:
Xiaomi's secondary optical zoom ratio may not be twice as high as that of the iPhone X (1.86 times). The official website does not indicate the optical zoom multiple, while the S5K3M3 secondary camera sensor used 6mm actual focal length on S9+to achieve twice the optical zoom, but the focal length of Xiaomi is 5.2mm, and the actual multiple should be about 1.8 times;
The focus information of Meizu 15 shows that the optical zoom is 1.56 times, but if the conversion of 20 million to 12 million is included, the lossless zoom is only 2.6 times. I hope the EXIF information is wrong
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: The smoothness of shooting and the consistency of the film, Whether the viewfinder 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 tablet by shaking hands; Intelligence, Whether the scene with large light difference and weak light can be recognized, and HDR and night view mode can be automatically triggered.
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 (the industry trend is changing from "realistic" to "eye pleasing"), lens quality (including edge degradation control, anti glare, fog control, wide-angle and pillow distortion control, etc.), and many other contents.
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; There are objective standards for good photography, but 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 started to deviate from the official restoration route, and The appearance of various Leica and AI filters adds 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 proofs/the same objective fact, people with different evaluation systems, preferences and ideas will inevitably have different, even opposite views. Whether it is the result of the manufacturer's deliberate tuning, or the result of pure tuning mistakes/inability to tune, it is good for everyone to like the final result. Here, we will not discuss the level/order of aesthetics, but focus on understanding what we care about.
PS：
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, the focus of the sample is in the middle, and the original is placed in the sample library of Ainong machine
Among the four machines, Xiaomi MIX 2S and One Plus 6 have competed in the photo comparison before Love Computer and carried out corresponding analysis, so this photo comparison mainly focuses on hammer nut R1 and Meizu 15. Comparison of previous photos:
Photo experience Special point description
Although the quality of proofs will be metaphysical according to aesthetic preferences, the needs for speed, accuracy and UI are unified in terms of camera experience:
The best camera experience is One plus six The shooting is smooth, the UI is simple, the focus and shutter response are OK; The second is Xiaomi MIX 2S The problem of frame loss/jelly in the early weak light shooting has been greatly alleviated, but there is still room for progress; Further down, the experience of the flagship is below the passing line, and it is still "hard to distinguish between high and low".
Meizu 15 The main problem is that there is no automatic HDR (automatic night view). Yes, it is 2018, and there is no automatic HDR. Of course, if the HDR effect is not good, it is a good thing. If Xiaomi triggers HDR in weak light, it will cause adverse effects, which is the most painful example. In addition, Meizu 15's weak light focusing speed is not as fast as the other three machines with dual core focusing or full pixel dual core focusing. The shutter response is slow, HDR is also slow, and the overall photo taking experience is relatively slow;
Hammer nut R1 The main problem lies in the optimization and bugs of the firmware at this stage. In the daytime, frames are also occasionally dropped. Weak light also has frame dropping and jelly phenomena similar to Xiaomi's. In the virtualization test, the camera has also tried to crash. The shutter response is standard, the camera UI interface is complex, and the buttons are small, so you need to adapt. It should be mentioned here that hammers are very rare in the Android camp. They provide vibration feedback like the iPhone 8/8 Plus/X when pressing the shutter, and the vibration force is greater than that of the iPhone. You know, shaking hands is the most frightening thing when taking photos. When you press the shutter, you take the initiative to vibrate. If you do well, you are confident. If you do poorly, you commit suicide.
With the maturity of the industrial chain, the photography of domestic flagship has made rapid progress in recent years, but there are still some small problems. For example, as mentioned earlier, the automatic HDR of Xiaomi MIX 2S will react under weak light, and the HDR mode of Hammernut R1 will greatly improve the light metering, resulting in distortion and loss of details. The former suggests turning off automatic HDR at night, while the latter suggests turning off automatic HDR directly.
Daytime scene
Enlarge the distant scenery proportionally, and pay attention to the size contrast of the same building
Hammer nut R1 has the smallest wide-angle/field of vision (27mm), and Meizu 15 has the largest wide-angle (EXIF shows 25mm, but the actual field of vision is larger than that of one plus at the same focal length), with millet and one plus sandwiched in the middle.
After the central part of the sample sheet is magnified proportionally, the size difference of the same scene in the nut and millet sample sheet is very small; Meizu 15 is slightly smaller; While one plus pixel is higher, the same scene has more pixels. Under the same conditions, it will be the one with the best daytime discrimination.
Day Scene 1
Day Scene 2
Day Scene 3
Daytime scene 3 central magnification
Daytime scenario 4
Zoom in at the center and right side of daytime scene 4
Day Scene 5
Daytime scene 5 central magnification
Day Scene 6
Daytime scene 6 central magnification
Daytime scenario 7
Daytime scene 7 central zoom in
Daytime scenario 8
Day scene 9 (Xiaomi's white balance overturned here, and HDR control is the best)
Daytime scenario 8
Daytime scene 8 central magnification
Light scene
Light Scene 1
Light Scene 1 Center Enlarged
Light scene 1 center right zoom in
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
Weak light/extremely weak light scene
Weak light scene 1
Weak light scene 2
Weak light scene 2 central amplification
Weak light scene 3
Weak light scene 3 central amplification
Weak light scene 4
Weak light scene 4 central amplification
Zoom in below the center of weak light scene 4
Extremely weak light scene
Extremely weak light scene, zoomed in on the left in the center
In such a place where you can't see your fingers, the safety shutter of Xiaomi MIX 2S and Nut R1, both IMX363, is set at 1/13 second, which is quite conservative. Meizu 15 is not only the lowest but also the slowest security shutter (the value of 1/4 second, usually only appears on iPhone). The final effect is remarkable. Not only is the brightness in the viewfinder the highest, but the actual picture detail performance is also the best. What's more, the film rate is still acceptable.
Xiaomi and Yijia both forced up the brightness of the picture. The noise of the former could not be suppressed, while the bottom of the latter was too small. Even though there was an "equivalent shutter" of 1/5 second, the contrast and details of the picture knelt down. The most pitiful thing is the nut R1, ISO 6400, and the shutter is too short. The picture is so dark that it has no record value.
Phantom and zoom
The virtual mode of Xiaomi and Meizu uses the long focus sub camera, while Nuts and Yijia use the regular focus main camera. Nut R1 can adjust the intensity of virtualization at a later stage, while once added, the sample will be cut to a certain extent (becoming 14.2 million pixels). When facing the non-human face, the best matting effect is Xiaomi MIX 2S, followed by Yijia, Nuts and Meizu, but the overall gap is not big, and there is no big problem in dealing with the circle of friends.
2x and 3x zoom field of view/wide-angle comparison
Zoom to same size
2x and 3x zoom field of view/wide-angle comparison
Zoom to same size
Meizu provides 2x and 3x zoom options similar to Huawei P20 Pro, both of which are completed through telephoto sub camera+digital amplification. The 3x zoom increases the contrast and sharpening, and the actual picture information and discrimination are not very different. However, the field of vision of the 3x zoom is significantly narrowed, and the sharpening transition is not as practical as the 2x zoom, so its 2x zoom is uniformly used in the comparison below.
2x zoom contrast 1
Double zoom contrast 1, central amplification (nut R1 triggers HDR, and the discriminant force overturns)
2x zoom contrast 2
2x zoom contrast 2, central magnification
2x zoom contrast 3
2x zoom contrast 3, central magnification
There is no comparability between optical zoom and digital zoom. Among them, Xiaomi and Meizu have their own advantages and disadvantages. One plus 6 because the pixels are higher, the effect of 2x zoom is better than that of nut R1.
Meizu 15's subphoto can also be used in the light scene with good light, but it will not be forced to open subphoto all the time like Xiaomi MIX 2S. In the light environment, Meizu 15's powerful sharpening has pushed up the contrast and saturation, but it is a bit too high, resulting in a hard picture and a strong sense of monosodium glutamate (which is also very similar to Huawei P20 Pro). At first glance, it is clearer, but the picture details are not too different from Xiaomi's. The image of MIX 2S is more natural.
Summary
In order to facilitate everyone to form their own judgment, The following is a disorderly order, which does not represent strength ：
Hammer nut R1: Although HDR multi frame synthesis is slow and the shutter response is slow, the film rate is the highest among the four (after all, there is optical anti shake, and the safety shutter is 1/13 second). The style of the film is High contrast, high color saturation, large light difference and weak light scenes have an obvious tendency to dim metering , the dark part is easy to die. In combination with this wide angle small, point to stop noise reduction coating and dark metering, The initiative and discrimination can slightly beat other opponents from day to night , which is the type that the author prefers. Its main weakness is that, The photography experience is not very friendly. When HDR is triggered, the discrimination will be delayed, there will be no telephoto sub photography, and the extremely weak light metering is insufficient, which will directly affect the availability of the film ；
One plus six: Focusing speed is not good, but the success rate and film rate of weak light focusing are lower than those of the two IMX363 models (1/5 second safety shutter after all). its The biggest advantages are photography experience, light metering and white balance The overall picture of the four TV stations is the closest to the real situation and the most stable (these competitors are weak on both points), The 16 million pixel main pixel is high, but the discrimination in the daytime cannot be separated from the distance, and the discrimination in the lighting scene is OK, The main weakness is the discrimination and contrast of the weak light scene, as well as the lack of telephoto like a hammer;
Meizu 15 : It is the most promising machine before the test, optical anti shake+IMX380, which makes me excited. But the safety shutter is too fierce (all pressed to 1/4 second), The low light flake rate is average. It is the most elegant one among the 4 sets, and the brightness color is not easy to overflow. The film style is a bit like Huawei P20 Pro, There is an optical zoom, and the main and secondary cameras will be switched according to the light intensity. The minimum ISO can be pressed to 50. Extremely weak light imaging is ferocious, and the image brightness and detail are the other three flagship ships present. The main weakness is that the photography experience is slow ， No automatic HDR (As a result, some scenes are less tolerant than other flagship ships) The white balance is the most unstable one here The focus of the main analytical force is in the middle and downstream (after all, the wide angle is large), and the focus of extremely weak light will be slightly pulled by the bellows, sharpening and noise reduction The application force is too heavy, resulting in the picture "hard and strong MSG".
Xiaomi MIX 2S: DxOMark's percentage camera has been out for a long time, and everyone is familiar with it. The light metering of the current version of firmware has an obvious tendency to bias toward brightness, so the dark details have their own bonus, at the cost that the picture will slightly deviate from the naked eye, and the dark noise will be more obvious. In the daytime, the light is extremely weak, The discrimination is at the middle and upper reaches of the 4 sets. The long focus sub camera also performs well, and the overall imaging is "very watery" In addition to the automatic HDR that has reaction in the night scene, there is no rollover on the whole, but there is no particular highlight.
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