S8 photography skills

The highlight of Samsung in the first half of this year is still Galaxy S9, a newcomer to the Galaxy S series. At first glance, it continues the style of Galaxy S8, but in addition to the improvement of hardware specifications, the detailed design has also been greatly adjusted. However, returning to the actual use level, the biggest breakthrough of Galaxy is that it can introduce a dual-aperture variable design for the first time in such a thin smartphone, which also provides greater flexibility for taking pictures. As for the S9 Plus this time, it also has the characteristics of dual main lenses.

The overall design of Galaxy S9 Plus is quite close to that of the previous generation Galaxy S8 Plus. It is also equipped with a 6.2-inch display of 18.5: 9, and it does not have a screen with a free border design that follows the trend. Despite this, as early as the Galaxy S8, Samsung made a compact design on the up-and-down mechanism of the screen, and it still has an excellent front screen ratio, and at the same time it will not let the top of the screen have a weird "sea-to-sea" design.

Compared with the back of the Galaxy S8, the configuration of the camera and fingerprint recognition position of the Galaxy S9 series can be said to be much normal. For some reason, in order to strengthen the proportion of the front screen, Galaxy S8 officially moved the fingerprint reader integrated with the Home button to the back of the fuselage, but placed the fingerprint recognition in the horizontal direction of the camera when it was held normally. As a result, many users accidentally stained the oil stains on their fingers outside the lens when their fingerprints were unlocked, which affected the shooting quality. Galaxy S9 series changes fingerprint recognition to vertical position, so it is not easy to touch by mistake.

In addition, in details, Galaxy S9 Plus still uses Bixby shortcut keys under the volume button, which is a foregone conclusion to promote consumers to use Bixby in Galaxy S8 series. In addition, the author found that the color under the glass behind the machine is finally no longer composed of dots, otherwise there is always the illusion that the printing resolution is not enough.

For friends who like listening to music, Galaxy S9 series has launched a dual speaker design this time, with a speaker at the top of the screen and a speaker at the bottom of the fuselage as the configuration. With AKG and Dolby Atmos, the volume and presence are better. In addition, a 3.5mm headphone hole is reserved. For players who have bought high-quality headphones, there is no need to worry about switching to digital interface or Bluetooth interface to let their beloved headphones continue to be used on new phones. ?

Samsung's Taiwan Province Galaxy S9 Plus processor continues the tradition and continues to maintain Samsung's own Exynos application processor. This time, Exynos 98 10 belongs to Exynos 9 series. Compared with the previous Exynos 8895, it can be said that it is a change of inter-generational architecture, not only in clock upgrade and GPU architecture. Exynos 98 10 CPU can support Arm DynamIQ, and its performance on multi-core is better than that of big. Rarely in the past.

As for the user experience, it still maintains Samsung's consistent design style, including the virtual key design after canceling the front physical key, and the function of flexibly returning and executing the application list key, and sliding the application list from bottom to top. At the same time, the design of the quick function of sliding out from the side is maintained. The overall configuration should be familiar to consumers who have used Samsung mobile phones for a long time.

In terms of security authentication mechanism, Galaxy S9 series is basically the same as Galaxy S8. It did not adopt 3D face scanning similar to iPhone X as rumored earlier, and still maintained multi-point face recognition and fingerprint recognition of iris and front camera. However, this time, the dual face recognition mode is added, which can perceive the current light source environment and automatically select faces based on the front camera or iris. After all, the two identification mechanisms have their own advantages under different light sources, and can also avoid the problem that it is difficult to identify by a single mechanism in a specific environment.

However, the real innovation of Galaxy S9 series is the design of one mirror and two apertures. When it comes to changing the aperture design, it should be a big trouble for many players who have experience in using traditional cameras or digital monocular cameras to operate their mobile phones in professional mode, and it is also the key for mobile phones to surpass traditional digital cameras in specific occasions.

The variable aperture design allows the mobile phone to control the amount of light, so as to obtain the change of depth of field and change the image quality. However, on smart phones, due to the overall thickness, except for a few special mobile phones that have directly borrowed digital camera mechanism, all mobile phones cannot be equipped with variable aperture mechanism like traditional cameras. After all, the variable aperture mechanism will need a complex linkage mechanism, especially for mobile phones with limited space and thickness. The aperture of a professional camera lens is embedded by multiple blades to form a variable aperture opening with the center of the circle.

See more measured S9: Shooting Raiders from Boyfriend's Angle: "One Eye in the Mobile Phone Industry" spring outing test, measured Samsung Galaxy S9+ Netbeauty.

Of course, the variable aperture design used in Galaxy S9 series is not as complicated as that of professional lenses, and its principle is closer to the insertion aperture of ancient lenses (interested in the insertion aperture design of Lomography replica mirrors), that is, different apertures are provided by covering aperture inserts, and considering the complexity of mechanism design, the aperture insert has only one section (that is, one piece). When the aperture insert with smaller aperture is covered, the aperture will naturally change from F 1.

The aperture can be reduced to f2.4, which will theoretically change the depth of field and image quality. However, because the camera of Galaxy S9 is quite wide, the depth of field is slightly different, but it is not obvious. However, in general light, when the aperture is changed to f2.4, the image quality will be slightly improved. In addition, when shooting at night, you can reduce the obvious glare produced by some light sources by changing the aperture to f2.4, which is also beneficial to double aperture.

In addition, the Galaxy S9 Plus is equipped with a standard lens twice as large as the main lens. Although there is no double aperture design, it can not only provide uncut image quality at twice the focal length, but also suppress edge deformation better. At the same time, there is also an instant preview shooting of depth of field that Galaxy S9 standard edition does not have, which can directly switch the depth of field effect during framing. However, the author also noticed that the color of the photos taken in the preview of depth of field seems to be much brighter than that taken directly, which may be because this is an additional effect produced by the composite image.

At the same time, the Galaxy S9 series also doubles the slow-motion shooting performance, enabling high-speed shooting at 240fps. Besides the performance improvement of the application processor, it also depends on the fact that the photosensitive element used by Galaxy S9 is embedded with high-speed SRAM like Exmor RS element used by Sony in flagship machine, which makes the writing speed of image temporary storage faster.

The focal segment shot at 240fps will use about twice the equivalent block (that is, the component block will be cut). At the same time, in order to meet the needs of high-speed shooting, ISO will be improved in the dark, so like Sony's super slow motion, the noise will be more obvious in the dark area and will flicker because of the characteristics of the light source. In addition, buffering the second speed will make the shooting effect of some subjects (such as ground trams) that are not particularly fast not obvious.

This time, it also focuses on a new function, virtual doll shooting. This function is like an extended application of AR fun shooting, but it adds the function of analyzing the user's facial features to create a personal avatar. When building features, we need to choose between cute style and quasi-Zhen Feng based on the front photos without glasses.

However, because there is only a single type of face and posture, hairstyles and glasses accessories can only be selected. If the figure is round and plump, the similarity of virtual dolls will not be too high. For example, the virtual images of the author and another colleague are somewhat different from their own, but the five senses still have characteristics. I can only comfort myself that if I lose weight, it will probably be like this.

After the virtual doll is established, several GIF animations will be automatically generated according to the image of the virtual doll, which can be directly used as a map in the community. In addition, because it is an extension of AR fun shooting, it can also be used to record short films. For those who want to say something sometimes, but are ashamed to let others see their true appearance, they can use short films recorded by virtual dolls to convey their feelings.

As a new generation of flagship machine of Samsung, Galaxy S9 has two aspects: inheritance and evolution. It inherits the design and functional foundation of the new generation since Galaxy S6, including features such as design language, UI design and waterproof life. , so that consumers familiar with the Galaxy S series can get started immediately, and at the same time, they are more recognizable.

In terms of evolution, with the continuous improvement of camera function and security, it has brought a better experience to the most important use behavior of smartphones except surfing the Internet and making phone calls. Perhaps after the recent drastic changes in the smart phone market, instead of adding seemingly innovative functions that consumers don't need, we will take a slow and steady approach to strengthen the existing advantages and become the design concept of a new generation of flagship machine.

See more measured S9: Shooting Raiders from Boyfriend's Angle: "One Eye in the Mobile Phone Industry" spring outing test, measured Samsung Galaxy S9+ Netbeauty.

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