The IMX309 is a 45.44-megapixel CMOS image sensor manufactured by Sony. It delivers a 8256 × 5504 pixel array with a 4.35 µm pixel pitch, providing efficient photon collection at each photosite. The optical format spans a 43.163 mm diagonal with a 0.126388889 aspect ratio, placing it in the large-format category used in cinema, scientific, and aerial imaging. With 4.35 µm pixels, the sensor features compact pixel pitch suited for high-resolution imaging in space-constrained camera designs.