Evaluation of the camera function of iPhone X is still still picture "the highest score ever", what is superior and where are the drawbacks?

According to DxOMark, the iPhone X is significantly better than the iPhone 8 Plus in terms of zoom performance, exposure, hue, texture, low frequency noise, and artifacts, and it is rated at the highest score of 101 in photography scores It is said that it was decided. DxOMark explains how excellent the photos taken with iPhone X and where weaknesses are.

Apple iPhone X: Top performer for stills - DxOMark
https://www.dxomark.com/apple-iphone-x-top-performer-stills/

According to DxOMark, iPhone X is remarkably superior to iPhone 8 Plus in terms of zoom performance, exposure, hue, texture, low frequency noise, and artifacts. The naturalness of blurring in portrait mode, the excellence of HDR mode, details of detail, etc. are also mentioned as noteworthy points.

On the other hand, it is only 89 points for movie shooting, and it seems there is still room for improvement. Elements such as how exposure responds when the state of light changes, precise color rendering are evaluated to be comparable to iPhone 8 Plus.

So, the detailed evaluation is from the following.

◆ Bright environment
Like other smartphones, iPhone X is most effective in a bright environment. Both highlights and shadows are depicted to detail, the sky color is brilliant and impressive. White color was also accurate, color rendering was excellent, quality was also appreciated as wonderful.


iPhone X draws details without skipping the details of the highlighted part with light even in the presence of contrast.


◆ indoor & flash
It feels like flashing in a situation with a little light intensity. Even in an indoor environment it captures the scene firmly and even if you look at a flat desk, you can hardly feel the noise. Whether it is an incandescent lamp or a fluorescent lamp, the white balance is accurate. If the indoor light intensity decreases markedly, the accuracy of the description will also decrease, but still it was "acceptable".


◆ Zoom and blur
The iPhone X has improved the telephoto lens, and it is now possible to take beautiful zoom pictures and sharp portraits with optical hand shake compensation compared to the iPhone 8 Plus. Below are pictures taken with iPhone X on the left and iPhone 8 Plus on the right. Happiness looks the same way ... ...


When enlarging the image, iPhone X understands that the noise is less in the dark place and the description of the detailed part is clear.


The difference in blur is as follows. It is a picture taken with iPhone X on the left and iPhone 8 Plus on the right. Although there was a part where masking did not go well and there was a case where the depth prediction failed and the subject in front was blurred, but it is said that "overall is" very good ".


◆ Exposure and contrast (90 points)
It was exposed that iPhone X was rated as being particularly good. Especially, the difference came out in the picture taken in the bright sunshine. It is a picture taken with iPhone X, Pixel 2, Galaxy Note 8 from the left, but compared to the other two terminals iPhone X expresses the sky blue beautifully but fills the dark part black It is getting to know the color and detail without it.


The picture below is taken of a person with the sky behind. From the left as well, iPhone X, Pixel 2, Galaxy Note 8 correctly expresses the texture of the skin of the person, and the sky contrast is also depicted the most delicately in 3 terminals with the dynamic range.


However, when taking pictures with a window behind in a dark room, the details of the person may be lost.


And for the exposure in the dark place, it is low evaluation. Outdoor photographing is evaluated at 108 points, indoor shooting is evaluated at 91 points, photographing at places with low light intensity is 66 points.


◆ Color (79 points)
Even in any environment color is very vivid, but still outstanding was a photo outdoors. Even with the following images of iPhone X, Pixel 2, Galaxy Note 8 arranged side by side, the red and blue on the left iPhone stand out strikingly bright. Especially under an environment of 20 to 1000 lux, it is said to be excellent saturation.


◆ Texture (65 points)
The following pictures were taken when people photographed in different brightness environments on iPhone X. From the left, I cut out photographs taken in environments of 1000 lux, 100 lux, 20 lux. You can see that the texture changes greatly depending on the brightness.


Furthermore, it cuts out photographs taken with 5 lux environment with 3 terminals. From left is iPhone X, Google Pixel 2, Samsung Note 8.


◆ Noise (69 points)
iPhone X is very clear except that there are some low-frequency noises appearing on dark places and homogeneous colors as you see the photos taken in bright outdoors. However, when it reaches 100 lux or less, the noise begins to stand out, and the noise becomes noticeable when it becomes 20 lux or less. Below are all tripods taken with iPhone X, 20 lux, 100 lux, 1000 lux from the left.


Taking a picture under the environment of 5 lux is like this. It is taken from iPhone X, Google Pixel 2, Samsung Note 8 from the left.


◆ Photography of artifacts (82 points)
IPhone X is very excellent in photography of artifacts such as modern buildings, sharpness,Vignetting, Distortion,chromatic aberrationThe point is better. However, in an outdoor environmentGhost and flareThe point that the point that it will occur is bigger. Also caused by the influence of frequency shiftMoireOr, the sky blue changes to cyanCyan shiftWas also observed.


◆ Flash (85 points)
Generally, the problem with flash is that the light concentrates only in the middle and the end of the picture becomes darker. iPhone X is trying to solve this point, but when you look at the photo of "Less light intensity, with flash" shot with iPhone X and iPhone 8 Plus, the iPhone X is surely the middle and the end of the photo The brightness is homogeneous in the direction. However, it is an impression that the light intensity is not enough overall. Also, the fact that people are red eyes is also a negative point. It is a plus for the point that the little noise and details are clear.


◆ Zoom (58 points)
iPhone X equipped with f / 2.4 large aperture, telephoto lens with optical anti-shake feature recorded a higher score than the iPhone 8 Plus in the zoom picture. Below are 2 × zoom, 4 × zoom, 8 × zoom photos taken with iPhone X. Even in environments with little light, zoom pictures are "acceptable" quality, but it seems to be difficult to keep depictions of details when shooting zoom pictures in a light less environment.


Below is 100 lux, a picture taken by 2 times zooming. It is iPhone X, iPhone 8 Plus, Galaxy Note 8 from the left, and although clearness of iPhone X is obvious, you can see that Galaxy Note 8 is also excellent in zoom photographs.


◆ Bokeh (55 points)
The iPhone X telephoto lens demonstrates its power in outdoor and indoor portrait shooting. The portrait algorithm is one of the most attractive things DxOMark has ever seen and the effect of the depth of field is pleasant. The way to blur the background is somewhat weaker than the other devices, but the naturalness is slightly higher for the iPhone X. There is a slight difficulty in measuring the depth, such as slightly blurring what is in the foreground, but it seems to be a difference that does not know unless you enlarge it and cut it out.


For movie shooting, 81 points for exposure, 86 points for color, 51 points for texture, 66 points for noise, 83 points for artifacts, and 91 points for stability are evaluated. Although the exposure is also highly evaluated, natural images can be produced in response to changes in white balance and light, but there are problems left in the environment of low light intensity. However, the quality is "acceptable". Also, autofocus and tracking of subjects in a bright environment are accurate, and stability is also said to be "generally excellent".

The iPhone X's camera performance when "still image" and "movie" were merged was "97 points", which resulted in breaking the point with Google's Pixel 2 by 1 point difference.