One plus 9 Pro Super Wide Angle Experience: How fragrant is the super wide angle with good picture quality and no "distortion"?

Since smartphones entered the era of multi-cameras, we have often heard such terms as main camera and auxiliary camera. Indeed, in the era of multi-cameras, the specifications of each camera are different according to different functions. But there is a "basic law", that is, the specifications of the main camera are often the highest. After all, in the multi-camera module, the main camera is responsible for image quality and facade, while other cameras are responsible for more functions, which also makes it have some gaps in specifications compared with the main camera.

For this reason, there are some differences in image quality and color of different focal segments in most multi-camera modules, which makes many users "love and hate" multi-cameras. As time came to 202 1, some brands began to pay attention to this issue. For example, the recently released one plus nine series of new products, in addition to the imaging system jointly developed with Hasselblad, are equipped with the same Sony IMX766 sensor as the main camera at the ultra-wide-angle end. And a special "free form" lens is used. Flatten the main lens with image quality, effectively alleviating the distortion caused by super wide angle. So what is the actual effect?

The shorter the focal length, the larger the viewing angle.

As we all know, the super wide-angle lens is actually a wide-angle lens in the field of traditional cameras. As shown in the above figure, their biggest advantage is that they can get a wider viewing angle through a shorter focal length. Simply put, it is the same distance. The shorter the focal length, the more pictures can be accommodated.

Standard focal length

Super wide angle focal plane

However, compared with standard focal length cameras, super wide-angle cameras also have some "side effects". As mentioned above, the characteristics of super wide angle and short focal length are realized by special lens shape and structure, and this structure will make the photo change invisible to the naked eye without shooting the object itself. In the terminology of the photography industry, it is "lens distortion".

At present, there are two methods to solve the problem of lens distortion, algorithm adjustment and optical adjustment. The algorithm level is well understood, that is, stretching and repairing the distorted picture through the later algorithm, which is also the mainstream method for most mobile phones to optimize ultra-wide-angle distortion at present.

The optical layer is complex, so it is necessary to add special-shaped correction lenses in the camera lens group to control the distortion. Theoretically, the restoration of hardware optical layer will be more natural than the later software algorithm, with less loss of image quality.

This one-plus-nine series super wide-angle lens is to control the distortion at the optical level. It adds a free-form lens to the ultra-wide-angle lens group equivalent to 14mm to reduce the optical distortion. What is the actual effect?

As can be seen in this set of comparative samples, the super wide-angle property allows it to accommodate more content in the same position. There is also a small detail here, that is, the partition of the bookshelf. If it is a traditional ultra-wide-angle, when encountering such a scene, the picture will have exaggerated "triangle" perspective distortion, which is basically invisible above one plus. I have to say that the anti-distortion effect of freeform lens is still very good.

After enlarging the edge, we can also see how strong the free-form surface glass with 9 Pro can control the distortion. It can be seen that the ultra-wide angle focal plane at the edge has no obvious shape change, and the overall appearance is basically the same as that of the standard focal plane. Moreover, in terms of image quality, the image quality, color and white balance of the two cameras are very uniform and look very comfortable.

Not only does it do a good job of anti-distortion, but one plus nine series also adopts the ultra-high specification sensor with ultra-wide-angle lens: Sony IMX766. This sensor has 50 million pixels, the sensor size is11.56 inches, and the maximum equivalent pixel size is 2.0μm in the pixel four-in-one mode.

In order to let everyone fully understand the image quality performance of this super wide-angle lens, the author also took some proofs:

One plus Pro super wide-angle proofs

One plus Pro super wide-angle proofs

One plus Pro super wide-angle proofs

One plus Pro super wide-angle proofs

One plus Pro super wide-angle proofs

The weather in Guangzhou has been cloudy these two days, and one plus 9 Pro restored the weather at that time. And in terms of image quality, overall brightness and edge distortion control, it shows a very high level, and the color performance is also very Hasselblad. The whole is natural and not very rich.

Moving the night is a nightmare for many super wide-angle cameras, so how about adding 9 Pro? We then look down:

One plus Pro super wide-angle proofs

One plus Pro super wide-angle proofs

One plus Pro super wide-angle proofs

One plus Pro super wide-angle proofs

One plus Pro super wide-angle proofs

Under the blessing of Sony IMX766, a high-specification CMOS, whether it is picture purity, noise control or detail amplification, one plus Pro still performs brilliantly at night and in dark environment. Even under the influence of harsh indoor lighting environment with different colors and different light intensities, the comprehensive performance of one plus Pro is still worthy of recognition. Without the strange glare and white balance in the picture, the strength of the main camera sensor is still very online.

Who doesn't want a super wide angle with good image quality and no "distortion"?

In the era of multi-cameras, how to make multi-cameras not become "gimmicks" has always been a headache for many mobile phone brands. One plus nine series showed their answers through powerful multi-camera modules. From the comprehensive experience, whether it is the image system cooperated with Hasselblad, the high-standard ultra-wide-angle CMOS, or the excellent anti-distortion ability of free-form surface lens, one plus nine series has indeed made its own way in mobile phone images.

Looking ahead, with the innovation and upgrading of technology, the flagship of the future will definitely abandon the idea of a single main camera and pursue a more comprehensive experience. As one of the participants, no matter the previous efforts on the screen or the current exploration in the image, every product of it has the feeling of never giving up until it reaches its goal. This spirit of exploration is worth learning from all brands.