Since the beginning of this year, the breakthrough point of almost all flagship mobile phones has been in imaging. Outsole main camera, ultra-telephoto zoom, extremely dark algorithm, etc., mobile phone photography has new ways to play every day.
But among the many mobile phones, there are a few more special ones, Huawei P40 Pro+, vivo X50 Pro/Pro+ and Xiaomi 10 Ultra.
These phones have introduced the concept of “binocular zoom”, which is simply equipped with two telephoto lenses.
Isn’t one telephoto lens enough? What’s the point of using two lenses?
At present, most of the flagships on the market use periscope telephoto lenses, with an optical zoom factor of 5 times or higher. However, the optical zoom here is a fixed value, 5 times is 5 times, more than 0.1 times less than 0.1 times, it can not be called optical zoom.
So the problem arises. If a mobile phone is equipped with a 5x optical zoom lens, its 1.x to 4.x times are all realized by the main camera digital zoom or hybrid zoom, and the degradation of image quality is inevitable.
And before 5 times, the closer to 5 times, the worse the picture quality, and suddenly it becomes clearer when it reaches 5 times.
The picture quality fluctuates from high to low during zooming, which is not cool enough.
So mobile phone manufacturers thought of a way to add a medium-focus lens between the main camera and the periscope lens to compensate for the loss of image quality during zooming.
Specifically, vivo X50 Pro/Pro+ and Xiaomi 10 Ultra are equipped with 5x optical zoom, so a 2x mid-focus lens is added; while Huawei P40 Pro+ supports 10x optical zoom, so it is equipped with a 3x mid-focus lens .
With two telephoto relays, the problem of high and low picture quality will be greatly improved. But there is no doubt that one more camera hole is adding to the back design of the phone, and even affects the grip.
Is there a way to combine two telephoto lenses into one? The new generation of stepped hybrid optical variable technology recently announced by OPPO solves this problem well.
OPPO stepped hybrid optical variable technology
All mobile phones currently on the market use fixed-focus lenses, and the lenses can only move as a whole. OPPO divides the 7-element lens into three groups. The lens groups cooperate with each other to fix the focus and rely on the flexible movement of the two groups of lenses.
In other words, these lenses can not only move as a whole, but also change their relative positions in units of groups.
In the end, OPPO’s stepped hybrid optical zoom technology has achieved optical zoom with equivalent focal lengths of 85mm and 135mm, and the aperture can be switched between f/3.3 and f/4.4.
At the same time, OPPO also uses Fusion multifocal image fusion technology, multi-shot field of view angle alignment technology and super-division algorithm, etc., and finally achieves a focal length coverage of 85mm~280mm (hybrid zoom), which is converted into a multiple of about 3.5~20 times.
In this way, OPPO only needs one lens to accomplish what the first few models can do with two lenses-it can not only make breakthroughs in high-magnification zoom, but also ensure the quality of the medium focus.
In terms of parameters, this new generation hybrid optical zoom system uses a 16:11 wide-ratio large-size image sensor, which is different from the common 4:3 frame.
In addition, this lens has a maximum resolution of 32 million pixels and supports four-in-one pixels, which is much higher than the common 13 million pixel periscope lens. So it can achieve higher digital zoom multiples through cropping.
Previously, the Xiaomi Mi 10 Ultra could achieve 120x digital zoom because of the use of a high-pixel four-in-one lens. OPPO’s parameters are similar, and it should not be difficult to achieve it.
In addition, OPPO also mentioned that this is a large-size sensor, which will be more practical in dark scenes.
Just talk about the fake handle, OPPO also announced a comparison sample of the 85mm and 135mm focal lengths, you can take a look.
(Equivalent to a partial comparison of 85mm real shot proofs, the picture on the right uses a new generation of hybrid optical zoom technology)
(Equivalent to 135mm real shot proof comparison, the right picture uses a new generation of hybrid optical zoom technology)
The improvement is obvious, right?
But for consumers, the most important technology is mass production, not just staying in the laboratory. OPPO will soon be able to do this.
According to digital blogger @数码闲聊站, mobile phones equipped with 10x optical zoom and 20x hybrid optical zoom have been tested and are expected to be equipped with the Snapdragon 875 platform (code name sm8350).
According to convention, the flagship Snapdragon platform is usually released at the end of the year and will be listed in the spring of the following year. Therefore, this new OPPO machine may be unveiled in March next year.
There is no doubt that the next flagship competition will still focus on the imaging field, especially in high-power zoom. OPPO’s stepped hybrid optical zoom technology can firstly improve the telephoto imaging effect, and secondly, it can improve the mid-focus experience without increasing the number of lenses. This is undoubtedly another surprise after the Reno 10x zoom version.