What is the strength of OPPO Reno's 10x hybrid optical zoom?

OPPO mobile phone It has always been favored by consumers for its excellent shooting performance, and each generation of models has a good performance in shooting performance. I have combed OPPO mobile phone "Black technology" on the camera, see《 Evolution of OPPO mobile phone photography from rotation to lateral rotation lifting 》。

OPPO's black technology on cameras is developed in two lines: on the one hand, it is the combination of mechanical structure and cameras. The pioneering work of OPPO's mechanical structure is OPPO N1. The biggest feature of this mobile phone is that it is equipped with a camera that can rotate 206 ° freely. In the situation of poor performance of the front camera in that year, we changed our thinking to solve the problem.

OPPO N1 and OPPO N3

OPPO N3 adds an electric motor to the N1 rotating camera. You can operate the rotation of the camera by sliding on the screen, and the camera will rotate slowly or quickly according to the speed and strength of your sliding.

On the other hand, it is the pursuit of imaging quality and photography interest. Comparison in this respect OPPO R9s Relatively representative, OPPO combination is adopted on R9s Sony Jointly developed the addition of IMX398 sensor, sapphire lens, 6P lens, dual core focusing technology and other technologies, making OPPO R9s' photography level impeccable.

OPPO R9s and OPPO R11

The successor R11 of OPPO R9s adopts the luxury configuration of "front and rear 20 million" for the first time, specifically the front 20 million pixel self camera, and the rear 16 million pixels Dual shooting scheme of wide-angle (6P lens, F1.7)+20 million pixel telephoto (5P lens, F2.6). The rear dual camera combination brings double optical zoom, which has greater advantages than a wide-angle lens in terms of shooting both distant view and close-up of people.

What is the epitome of the mechanical structure and photographic quality of the OPPO family? On April 10, OPPO Reno A series of new product launches were held in Shanghai, and the OPPO Reno series mobile phones became the focus of the industry as soon as they were released, OPPO Reno 10x zoom version It not only has the mechanical structure of OPPO family, but also has high attainments in photography quality. Today, we will explore the mystery of OPPO's 10x hybrid zoom technology.

OPPO Reno 10x zoom version is the epitome of OPPO's photographic exploration

Powerful hardware parameters are the basis of 10x zoom technology

OPPO Reno 10x zoom version rear three camera, specific parameters are: 48 million pixel ultra-high definition main camera+13 million pixel ultra-long focus+8 million pixel ultra-wide angle. Among them, the main picture of 48 million pixels is IMX586, Sony's flagship CMOS.

OPPO Reno 10x zoom version rear main camera is Sony flagship CMOS

The 10x hybrid optical zoom technology is undoubtedly the biggest technical highlight of OPPO Reno 10x zoom version. The "10x" of 10x hybrid optical zoom technology refers to the 10x zoom with an equivalent focal length of 16mm-160mm in the full focus range from wide-angle to long focus, which requires three lenses to be "connected".

Zoom is a function often used in photography, especially in the camera field, but it has only appeared in recent two years on mobile phones, and it is only 2x optical zoom and 10x digital zoom. The overall improvement of the shooting experience is not very great, but it has been an important upgrade on mobile phones. The main reason is that the zoom lens is complex in structure and large in size, It is impossible to put it in a thin and light mobile phone.

The camera relies on lens expansion and contraction to realize "zoom"

If the camera is simply and roughly inserted into the phone, the result will be like a SLR, which must have a very long camera. Although there have been similar explorations on mobile phones, this approach does not work on mobile phones.

OPPO's approach is to introduce a "periscope structure". We can make a vivid analogy. The submarine will use a periscope when looking at the water surface under potential water. When we were young, we all played with a simple periscope. We can see objects from another angle through two folds, which is equivalent to adding two mirrors to the telescope, and the light will turn to the eyes after two reflections.

OPPO's "periscope structure"

OPPO's "periscope structure" has the same design as periscope. In short, since the lens module cannot be placed vertically, it can be directly horizontally, "lying down", and then refract the light into the horizontally arranged sensors through the 45 ° prism module, so that the bottom edge of the sensor is the last place of the entire lens module.

D-Cut lens

OPPO added the "D-Cut" optical lens with asymmetric injection molding process, and finally the thickness of the periscope module of the entire telephoto lens was controlled at 5.75mm, which is the main reason why OPPO Reno can flatten the back. It is precisely because of the prism module that the telephoto lens we see is square.

Interior structure of telephoto lens

In order to reduce the volume and size of the telephoto lens, the periscope camera and L-shaped lens module are designed with the same principle as the 5x optical zoom technology of that year.

Anti shake test

The prism is tested with tweezers for anti shake, and it is measured that it can effectively resist hand shake. In the same way, we also tested the anti shake of the main camera. The measured results show that the reliability of the dual OIS optical anti shake technology is relatively high.

Real zoom depends on proof

The whole tenfold zoom process can be subdivided into five stages: "wide-angle camera acting alone", "wide-angle and main camera acting together hybrid zoom", "ultra clear main camera acting alone", "main camera and long focal lens acting together", and "long focal lens acting alone", thus bringing the full scene composition of "ultra wide angle+large pixel main camera+ultra long focal lens" in the spatial dimension.

Rear three camera shooting index

For your convenience, the following is the index map of the rear lens and the official 10x hybrid optical zoom sample. It can be seen that the IMX586 sensor is used for the rear main camera, with 48 million pixels. In the daytime, details can be guaranteed, while at night, the high sensitivity of a single pixel can be achieved through "four pixels in one", thus improving the sensitivity at night. At the same time, the "Ultra clear Night View 2.0" introduced at the ColorOS communication meeting was not absent, and it can be flexibly used in every composition scene.

Effect comparison of OPPO Reno 10x zoom version from 0.6x to 10x

In actual use, OPPO Reno 10x zoom version has shortcut keys of 0.6x, 1x, 2x, 6x and 10x. As shown in the figure, The full focus section coverage of 10x hybrid optical zoom not only brings excellent image ability, but also gives mobile photography lovers more imagination and creation space; It also enriches the interest of mobile phone photography: a portable "periscope" allows you to see farther and gain a different vision.

Live shot of OPPO Reno 10x zoom version (photo source: Li Bai Rabbit)

For routine scene shooting, the sample of OPPO Reno 10x zoom version has more realistic color, accurate focus, well distributed composition elements, and excellent edge transition of the subject.

Live shot of OPPO Reno 10x zoom version (photo source: Li Bai Rabbit)

Night scene shooting, thanks to the introduction of long exposure night scenes, OPPO Reno's 10x zoom version of night scene exposure shooting ability is also guaranteed, and the night scene performance is excellent. From the samples, it can be seen that the "three shot" light intake and depth of field control ability of OPPO Reno's 10x zoom version are excellent both in day and night.

10x hybrid zoom technology is the new starting point of OPPO development

The excellent image ability of OPPO Reno 10x zoom version not only gives users more imagination and creation space for taking photos; It also made the world look at OPPO's strong technical strength with new eyes. In fact, this is not the first time OPPO has become a leading role in the spotlight.

OPPO in 5x zoom technology demonstrated by MWC2017

As early as during the MWC exhibition in 2017, OPPO showed its independently developed 5x zoom technology to the world for the first time, and made a prototype for testing and MWC display, which broke through the public's understanding of mobile phone cameras at that time. Samsung and Apple mobile phone manufacturers, as giants in the mobile phone industry, did not have this technology at that time, which also caused uncertainty about this technology.

Analysis of 5x zoom technology

OPPO set up a project to research and develop 5x zoom technology in early 2016. The realization of high zoom function on smart phones is an unprecedented challenge. OPPO Da Vinci Lab finally decided to create a periscopic structure.

OPPO's 5x zoom technology

OPPO convened seven suppliers to sit together and discuss the development of 5x zoom technology and periscope lens. These technologies require very sophisticated and complex designs. They have more stringent requirements for prisms, focusing systems, cameras, etc., and have higher requirements for the material, size, anti shake, and accuracy of glass prisms. Existing products and solutions simply cannot meet these requirements.

Participation in technology research and development Corephotonics, an Israeli company

In the face of a new technology, it is necessary to bring out real gold and silver for research and development and various tests, and all suppliers have shown enough sincerity. In the face of risks, OPPO and supply chain enterprises fought together, which also promoted the rapid emergence of new technologies.

Official publicity picture of OPPO Reno 10x zoom version

At the end of 2016, a prototype with a 5x zoom lens was launched, some of which were used as MWC2017 demonstrators. After a glimpse, commercialization accelerated. With the accumulation and incubation of technology, OPPO Reno 10x zoom version with 10x hybrid optical zoom technology will be launched in 2019.

OPPO's 10x hybrid optical zoom technology not only brings users the ultimate image experience, but also is the wisdom crystallization of OPPO's R&D strength. For OPPO, which is the king of technology, this is just a new start.

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