The OV4685 OmniHDR -FOmniBSI-2 is a 4.09-megapixel CMOS image sensor manufactured by OmniVision Technologies. It delivers a 2688 × 1520 pixel array with a 2 µm pixel pitch, providing efficient photon collection at each photosite. The optical format spans a 6.176 mm diagonal with a 168:95 aspect ratio, characteristic of 1/3-inch sensors widely used in embedded and surveillance systems. With 2 µm pixels, the sensor features very fine pixel pitch targeting maximum spatial resolution in microscopy and metrology systems.