After entering 2016, Xiaomi has launched the Rednet Note3 full Netcom version, Xiaomi 4S, Xiaomi 5 and Xiaomi Max. Although they are devices with different positioning and prices, perhaps many users who buy millet phones will be curious. How much difference will they have?
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Millet Max's camera model speculation: According to the actual film wide-angle and exif information in the focal length are consistent with the red rice Note3 full Netcom, the sensor size should also be 1/3.06 inches. The size of the 16 million pixel sensor, the most common is Samsung's interpolation version of the S5K3L2 and red rice Note3 Netcom's S5K3P3, while the former does not support phase focus, so millet Max is likely to use the red rice Note3 full Netcom Edition Sensor.
However, the suspect is that the extreme condition of Xiaomi Max is 3153 ISO and 1/14 second shutter, while Redmi Note3 full CNC is 6400 ISO (the highest extremist ISO device in millet history) and 1/10 second shutter. The possible causes include: different sensors, algorithm changes, and incorrect EXIF ​​information. It cannot be confirmed for the time being.
The effect is speculated: The hardware parameters of Xiaomi Max and Redmi Note3 Netcom are very close, and the performance is not far behind. S5K3P3 this CMOS 1.0 micron ultra small unit pixel size, even with ISOCELL technology, its day and low light imaging is estimated to be weaker than the millet 4S, and the gap between them and the IMX298+ optical image stabilization millet 5 is estimated farther.
Photo experienceCamera interface: The MIUI camera hasn't changed much since MIUI 6. On the left is a special function such as HDR and panorama, and on the right is a filter. Among the four machines, only the red rice Note3 full Netcom belonging to the Red Rice series did not have a voice-activated shutter function, but there were a lot of scene modes (personal, landscape, and sport modes are optional), but the overall difference was not significant;
Smart degree: Only millet 5 can automatically recognize whether the night mode is triggered or not , and the rest of the night mode must be manually turned on . Millet 5 and Xiaomi 4S can automatically determine whether or not to trigger the HDR mode according to the size of the optical difference , and Redmi Note3 and Xiaomi Max have to be manually turned on, and the degree of intelligence is low.
Shutter response and imaging speed: MIUI's shutter response and imaging speed has been very fast, down to the red rice Note3 full Netcom, up to the millet 5 are very close;
HDR and night scene processing speed: This is directly related to the computing performance of the processor. The processing speed of Xiaomi 5 is very fast. Samples can be processed within 1 second, followed by Xiaomi Max and Redmi Note3 full Netcom, and Xiaomi 4S is slow. A file, HDR and night proofs must be close to 2 seconds, and the experience is poor;
Focus success rate: 4 phones are equipped with phase focus, and the focus speed under daylight and normal lighting is good. However, when the Rednet Note3 Netcom is switched between distant and close shots, the camera will noticeably twitch (it will lead to slower speeds). The Max is slightly better, but there is a certain gap between Xiaomi 5 and Xiaomi 4S. However, the millet 4S has a problem of ineffective focusing under extremely low light . Even if the user manually clicks on the screen for several times, it cannot focus, and the other three machines do not have this problem. In addition, MIUI's focus frame, whether or not in focus will become green, a great impact on the camera experience;
Filming rate: In addition to millet 5 equipped with optical image stabilization, the filming rates of the other three are relatively common, even if the lighting scene with weak light has a greater chance of hand-shaking.
HDR and night scene effects
MIDI camera HDR algorithm, its availability has been very low, and no improvement in the latest millet Max signs. The effect of HDR proofs is very unnatural. Except for dark details that are over-highlighted, high color saturation, and a significant shift in white balance, excessive marks are hardened and algorithm smearing and sharpening are exacerbated. Again, MIUI's HDR function will keep it closed.
In addition, except for millet 5, the white balance of the remaining 3 machines is somewhat unstable. For example, the above millet Max proofs, the focus moves slightly, the apparent white balance will appear obvious changes.
Before Xiaomi 5, Xiaomi’s night scenes were “strongly smearedâ€. Large-radius noises made the screen look cleaner, but the price was lost in detail, and sometimes it gave people an illusion of not being good.
The latest millet Max and Xiaomi 5, their night mode to reduce the noise to retain the power of analysis (even can not see the traces of smearing), resolution and color saturation have remained intact, but the large-scale color noise It does affect the perception.
Millet Max dual mode, very low light scene contrast
Millet Max dual mode, lighting scene contrast
In general, the availability of the new night view mode is still relatively high, which can significantly reduce the problem of low color saturation under low light, retaining a lot of details, and there will be no obvious side effects when used in lighting scenes.
Lens quality & wide angle
The actual sample size comparison: all 4:3 proofs. Red rice Note3 full-mesh with the same focal length and millet Max, their wide-angle/imaging field of view is slightly larger than millet 5 (common 28mm equivalent focal length), millet 4S minimum (30mm equivalent focal length).
Specimen equal magnification, contrast the same object
Discriminating power prediction: The same object has more pixels in the proofs, and its analysis power will have more advantages. While Xiaomi 5's high-resolution pixel with medium-wide angle, the object can be divided into more pixels (larger after the same magnification); Xiaomi 4S, although only 13 million pixels, but the wide-angle range is smaller than other machines, to a large extent, "sacrifices †Viewfinder range to reduce the number of pixels in the weak , in the proofs, the object is larger than 16 million pixels wide red rice Note3 full Netcom and millet Max.
Lens glare: Red rice Note3 Netcom and millet Max lens quality is relatively general, radioactive ray, atomization, flares are more obvious, there is also a purple light spot on the edge of light, and the gap between millet 4S and millet 5 is larger, but The performance of the latter two can only be considered moderate.
Left is the sample after repeated lens wipes, and the right is normal proofs
In addition, the red rice Note3 full CNC and millet Max lens glass are very easy to absorb oil and cause serious glare, you need to wipe the lens multiple times to wipe the lens to avoid. The difficulty of maintenance is too high. It is very difficult for normal users to use the camera to avoid the problem of “flooding†the lens. It is necessary to avoid strong front light sources as much as possible.
White Balance & Metering & SaturationPS: This part of the proofs is used to compare white balance, metering, and color saturation. The proofs and proofs are placed centrally in the final section.
Daylight Scene 1
Daylight Scene 2
Daylight Scene 3 (all biased, relatively speaking, red rice Note3 more accurate metering, but the white balance is slightly greener)
Daylight Scene 4 (unlike green)
Daylight Scene 5 (unequal red)
Light scene 1
Light scene 2
Light scene 3
Low light scene 1
Low light scene 2
Low light scene 3
Low light scene 4
Metering: Metering of millet 5 and millet 4S is closer to the naked eye, red rice note3 full CNC and millet Max are slightly darker, but not much
White Balance: After so many years passed, Xiaomi’s camera algorithm still needs improvement. In the day when the white balance is less difficult, once the scene with a slightly larger object contrast (scene 3 sky, scene 4 bushes), the white balance and color saturation of 4 millet equipment (scene 5 flowers) are Different.
Tendency, millet Max uniform yellow, millet 5 is biased blue green, red rice Note3 full Netcom yellowish green, relatively speaking, millet 4S is actually the most real.
DistinguishabilityPS: Click on the image to see a larger image
Optical anti-shake strategy: Xiaomi 5 is the only machine with optical image stabilization, but its optical anti-shake seems to be more to improve the film rate, not to enhance the quality of the image. In most scenarios, the millet 5's shutter time and ISO are the same as those of other Xiaomi phones, but with optical image stabilization, it should be possible to shoot better proofs with a lower ISO, which is a pity. Without the inherent hardware advantages of IMX298, the imaging of Xiaomi 5 may not be able to open up the gap with other products of its own.
The difference between the old and new night scene algorithms: Xiaomi 5 and Xiaomi Max are the latest two machines of Xiaomi. They use a new night scene algorithm. The new algorithm gave up the previous strong noise smear, and even gave people the feeling of not smearing. It pays more attention to the retention of details, color saturation, and resolution. However, the color noise overall is slightly green, and the size is large, which affects the perception.
The old and new algorithms are two extremes. This may not be a problem for Xiaomi 5 with its own hardware. However, for the weak hardware millet Max, the choice of whether the new algorithm is appropriate is open to question.
Distinguishability
scene 1
Scene 2
Scene 3
Scene 4
Scene 5
Scene 6
Light scene 1
Light scene 2 below center
Light scene 2 center
Light scene 3 center
Light scene 3 below center
Light scene 4
Low light scene 1 (millet 4S can not focus)
Low light scene 2 (millet 4S can not focus)
Low light scene 3
Low light scene 4
During the daytime and light scenes, Xiaomi 4S performed stunningly, telephoto lens, so that its discrimination and millet 5 are very close, daytime subtle noise and details are thrown away from millet Max and red rice Note3 Netcom a lot.
In the low-light scene, millet 5 dropped sharply from other machines, followed by Xiaomi 4S, red rice Note3 full net, and millet Max was much stronger than red rice Note3. If they were really the same sensor, it was Xiaomi. The new algorithm has won.
summary
After all, these are four millet devices with completely different price points and positioning. Their photo gaps are quite obvious. The conclusion is very simple and rough: Xiaomi 5> Xiaomi 4S> Xiaomi Max> Red Rice Note3 Full Netcom.
The photographs of Xiaomi and Meizu have always been "brothers", but in fact they can still see the path of Xiaomi's progress: From Xiaomi 4C, they succeeded in catching up with daytime analysis. Xiaomi 5 took up low light resolution power, and grew up. The special nighttime algorithm that began with Mi5 has also been used on the latest millet Max.
However, Xiaomi's white balance and HDR algorithm do have a lot of room for improvement. I hope that the next improvement will be for them.
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