OPPO Find X2 Pro takes pictures to reach the top of DXO?

On March 6, OPPO Find X2 Pro was released, and the top position of the DXO Mark camera score list was refreshed again.

As the product line of OPPO's main high-end, exploring the ultimate experience, the Find series has long been commonplace at the cost of stockpiling. The "Pro" model this time brings out a completely different attitude, which is about who we are. The cost-effective choice of CMOS for imaging quality: the main camera of the IMX689 sensor jointly customized with Sony, the IMX586 flagship sensor as an ultra-wide-angle lens, a periscope lens with up to 60x zoom and OIS optical image stabilization. Three different focal length lens combinations can achieve full scene coverage for macro, ultra-wide-angle, wide-angle, telephoto and other shooting needs.

Image source from OPPO official website

The top-level CMOS certainly guarantees the image quality, but it cannot be ignored that the cooperation between multiple lenses also puts forward higher requirements for the ISP performance of mobile phones. In the context of the gradual popularization of 5G networks, a smoother viewing experience will further catalyze the advancement of the video industry towards high picture quality. As a popular video creation tool, mobile phones are in high demand for high picture quality, and ordinary users have also started to pay attention to 4K and high frame rates. , HDR and other professional specifications.

When the user presses the shutter, CMOS will generate a huge amount of data through photoelectric conversion and send it to the ISP for processing. The richer the recorded information, the larger the amount of data that needs to be processed. The performance of the ISP directly affects the user. Shooting experience. In addition, software algorithms related to exposure, focus, white balance, and noise control also need to be processed by the ISP. In other words, high-performance ISPs can provide manufacturers with more room for stacking and algorithm optimization.

The latest generation of Qualcomm Snapdragon 865 flagship platform, built-in Spectra 480 CV-ISP, can theoretically process up to 2 billion pixels per second, shoot 4 billion HDR video, 8K video, unlimited 960 frames per second HD slow motion Shooting and so on, this is a good start for the arrival of the 5G video era. Of course, the theoretical parameters are one thing, and the actual experience is another thing. Let us use Find X2 Pro to see what new shooting experiences users can get.

I. 10bit 4K HDR video shooting

4K HDR is no stranger to us. The mainstream flagship mobile phones have 4K HDR shooting capabilities, which means that the video taken is 3840×2160 resolution, and it can better restore the tonal relationship of the real scene and record more details. .

The 10 bit represents the color depth of the video. The higher the value, the richer the recorded colors, and the smoother the color transition in the picture. Generally speaking, the video recorded by a mobile phone is 8bit, which records 16.7 million colors, while the 10bit supported by Find X2 Pro can record 1.07 billion colors, which is an exponential improvement. At present, the top movie cameras support up to 16bit. The higher this parameter also means that the pictures taken are more cinematic.

Enable Live HDR

Turn off Live HDR

Enable Live HDR

Turn off Live HDR

Click Live HDR in Find X2 Pro's video recording interface to shoot 10bit 4K HDR video. The above picture is a screenshot of the comparison between Live HDR and unopened. It can be clearly seen that the picture is obviously more vivid and realistic after being turned on.

Of course, getting such a picture does not exclude that OPPO has specifically adjusted the color in Live HDR mode. However, it is undeniable that Live HDR restores the shadow at the top of the bus station, and the normal mode obviously brightens the shadow for the exposure of the overall picture. It is worth noting that HDR video also has higher latitude, which can provide professional users with greater color space in the later stage.

As for the improvement of color depth, due to the limitations of photo format compression, screen display equipment and other factors, I can not directly express it in the form of comparison chart, I recommend that everyone have the opportunity to experience OPPO offline store in person.

The reason why we recommend everyone to experience the real machine is that the screen of Find X2 Pro itself supports 10bit color rendering and has passed HDR10 + certification. The hardware specifications are perfectly compatible with the video recorded in Live HDR mode, so that what you see is what you see.

Faster focusing speed

As mentioned earlier, the main camera of the Find X2 Pro is equipped with Sony's custom IMX689 image sensor. It not only supports Quad Bayer (four-in-one pixel) technology, which can balance high sensitivity and high resolution, and also supports all-pixel omnidirectional focusing technology. , Which is Sony's 2×2 OCL technology. In simple terms, traditional mobile phone focusing technology can only use a small number of pixels for phase difference detection (only 3%), while OPPO's omni-directional omnidirectional focusing technology can use all pixels (100%) for focusing, making the focus Both accuracy and speed have been greatly improved.

In addition, traditional focusing technology can only obtain left and right focus information, and omni-directional omnidirectional focus technology has increased the acquisition of up and down focus information. It has oblique texture focus ability and can obtain more accurate focus in different scenes. .

From the test results, in a well-lit scene, the focusing speed of Find X2 Pro is very fast, making it almost impossible to notice the focusing process.

Even in extremely dim scenes, although the focus speed of the Find X2 Pro has slowed down, there is no hesitation and repeated pulling of the bellows during the switching of the near and far scenes.

For users who like to use VLOG to record their lives, a reliable focusing system can guarantee the video output rate. After all, the video can be retaken but the time will not be reversed. upset.

Third, experience the same lens module

In the Android camp, the zoom switching experience between multiple lenses has been criticized.

This is more obvious in mid-range models. When the user drags the slider to zoom on the camera interface, it will jump and freeze once it crosses the focal length of the lens. This is because after the lens is switched, the camera needs to complete the steps of exposure, focusing, and scene recognition, and the process of waiting for the lens switch will not only affect the smoothness of the operation, but also easily miss the opportunity to capture.

In fact, the solution is also simple, that is, all the lenses work at the same time, always on standby, so that the process of switching lenses can achieve a seamless transition and avoid stuttering. Of course, this direct and effective solution not only requires a high-performance ISP as the support to handle the huge amount of data generated by multiple lenses, but also combines AI algorithms to optimize the sense of jump when switching lenses, making the transition more seamless, smooth.

The fifth-generation Qualcomm artificial intelligence engine AI Engine brought by the Qualcomm Snapdragon 865 platform is jointly provided by the CPU, GPU, DSP, memory, cache and other modules to provide AI computing power, with a computing capacity of 15 trillion times per second (TOPS) It is more than 2 times that of Snapdragon 855 and 5 times that of Snapdragon 845. It plays a vital role in improving the camera experience.

As can be seen from the above figure, the zoom process of OPPO Find X2 Pro is quite smooth under the blessing of Spectra 480 CV-ISP and Qualcomm's fifth-generation artificial intelligence engine AI Engine. It is worth mentioning that the system will also give vibration feedback when your finger passes over a fixed focal length, and you will get better image quality when you take a picture at the standard zoom point.

In addition, the parameters between multiple lenses are different, and the photos taken are inherently different in terms of white balance and color. Reflected in the actual experience, the color of photos taken by lenses with different focal lengths will not be uniform.

Ultra wide-angle lens proofs

Wide-angle lens proofs

Telephoto lens proofs

From the photos taken by the three lenses of the Find X2 Pro, the color adjustment between them is quite satisfactory. Such performance can also be achieved without the support of the fifth-generation Qualcomm artificial intelligence engine AI Engine.

Of course, the application of the fifth-generation Qualcomm artificial intelligence engine AI Engine in the Find X2 Pro camera system is not limited to this.

In portrait mode, Find X2 Pro provides AI beauty function. With the help of machine learning, the beauty process needs to go through many steps such as facial skin analysis, identifying facial features, comparing the extracted big data to the face, and providing a customized beauty solution. The beauty effect, and the stronger the AI computing power provided by the processor platform, the better the details of the face will be processed, and it will not be easy to leave landscaping marks.

As for video shooting, OPPO Find X2 Pro provides video super anti-shake Pro function. The 120 ° ultra-wide-angle lens with AI anti-shake algorithm intelligently crops the edge picture to offset the natural jitter brought by handheld shooting. The AI algorithm can learn the lens movement trajectory. Make the video shot smoother, and the image stabilization effect is comparable to the stabilizer.

to sum up

Thanks to the powerful performance of the Spectra 480 CV-ISP of the Qualcomm Snapdragon 865 platform and the fifth-generation Qualcomm artificial intelligence engine AI Engine as the underlying support, the features such as Live HDR and all-pixel omnidirectional focus provided by OPPO Find X2 Pro are fully demonstrated. . From the test results, the upgrade of Find X2 Pro's image is not only reflected in the image quality, but also the focus on user experience, focusing speed, multi-lens coordination, and image stabilization are also worthy of our attention.