Sony manged to develop a new type of camera sensor for smartphones, the sensor will feature 12 Megapixel resolution and it’s called the new RGBW sensor… here W stands for the white pixels.. the white pixel here increase the sensitivity of the camera upto a great extent as you can see in the sample image below.
Now the individual pixels of the RGBW Sony sensor is 1.12μm, but due to the newly developed “RBGW Coding” the SN ratio (signal-to-noise ratio) equivalent to that of a unit pixel size of 1.4μm under conventional methods. We also hope that the same technology will be applied to APS-C and FF interchangeable lens camera in near future.
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src – Sonyalpharumor