Since the launch of the new OPPO Find X2 Pro top of the range, there have been many awards given to this smartphone, which immediately gave strong emotions to the Chinese brand, such as the praise of DxOMark, as well as the various reviews on the net who decree this device a concentrate of all-round technology and so here the company's Research & Development team reveals the secrets that led to the success of this flagship.
Certainly the company's intention was to bring a premium product to the tech scene, which could not give rise to any complaints given the sale price. In particular, the R&D team focused on photographic performances, pushing these beyond all limits, such as those of night scenes, trying to recreate the result obtained with professional DSLR cameras, inspiration for the Find X2 Pro sensors, laying the foundations on:
- photography sensitivity has been improved by over 50%;
- Full Well Capacity increased by 50%;
- 12-bit color depth recording and 12-bit RAW data direct output;
- 100% pixel focus capability and omnidirectional phase detection;
- native dual DSLR ISO.
OPPO's R&D team reveals the secrets of Find X2 Pro
The main camera of the Find X2 Pro uses the 48 MP IMX689 module, developed and customized in collaboration with Sony. An amazing sensor that has a unique dimension of its kind equal to 1 / 1.4 ", characterized by a larger pixel size (1.12 um), effectively translating into better performance during low light performance. The challenge was to insert a rather bulky sensor into a thin body.
There is no shortage of cutting-edge technologies, such as all-pixel omnidirectional focus, Live HDR, super sensitive full-focal triple focal system as well as software that can make images truly realistic. The sensor used in the top of the range has excellent precision and focus speed in dark environments and overall above average performance of focus.
The OPPO Find X2 Pro sensor uses QHDR and HVBin mode. The QHDR mode is used for HDR (3HDR) video, while the HVBin mode can output both horizontal and vertical pixel density signals (as shown in the image above). In addition to the horizontal signals, widely used in the PDAF, the team added vertical signals to improve focus performance and the general user experience.
Live HDR video is a new technology developed by OPPO in collaboration with Sony and Qualcomm, which allows progressive exposure in real time at the pixel level, supporting previews and 4K QHD + video recording, 30 fps and 10-bit HDR, plus a 10-bit high dynamic display. When the user records a live HDR video, the IMX689 sensor detects the scenario and selects the corresponding exposure strategy, suitable to guarantee a high quality and a high dynamic range.
For this top of the range OPPO has developed algorithms to automatically control exposures in based on long, medium or short installation scenarios. In doing so, the algorithm automatically adapts to the dynamic range of the various scenarios and consequently selects the HDR exposure strategies.
As anticipated, the challenge of the R&D team was to insert a rather large sensor, about 40% compared to traditional sensors, as well as a higher weight, without bringing out a design monstrosity typical of rugged phones. Nearly 20 different prototypes have been developed for the Find X2 Pro lens module, finally managing to solve all technical problems, including interference between the lens module, the microphone, the flash and the color temperature sensor, heat dissipation problems from high temperature modules (such as the flashlight) and glare issues caused by the lens.
The innovative technology has not been exploited only for what concerns the photographic rendering and the vividness of the colors, but also for what concerns the recording of the videos, using a system with three microphones, each of which positioned in the lower, upper and rear part mobile phone, ranking first among all Chinese smartphone brands to implement this design.
This allows for 3D recording and recording focus. Also in this case the challenge was to understand how to add a third microphone in a compact space without compromising the overall waterproof and manageability capacity of the smartphone. The decision was therefore made to insert the third microphone next to the rear main camera and to make small holes on the decorative part so that the microphone could receive sound. OPPO has worked intensely to ensure the structural integrity of the sound output ducts for the upper and lower microphones in order to minimize the risks of air tightness.
Finally, the fantastic function of the 10X hybrid zoom, adopting an OIS chip driver to improve stability while enjoying such a powerful zoom. In short, it is clear that the price of OPPO Find X2 Pro is also justified for the engineering miracle to which it was subjected during the design phase. If we think that Apple charges the newborn iPhone SE 2020 at a base of 499 euros, having recycled the shells of the 6, 6S, 7 and 8 models, we can even say that the top of the OPPO range is almost given away.