The IMX397 (Pregius 2. Gen) is a 0.33-megapixel monochrome CMOS image sensor manufactured by Sony. It delivers a 658 × 496 pixel array with a 3.45 µm pixel pitch, providing efficient photon collection at each photosite. The optical format spans a 2.843 mm diagonal with a 329:248 aspect ratio. With 3.45 µm pixels, the sensor features compact pixel pitch suited for high-resolution imaging in space-constrained camera designs.