The ISC9809 is a 0.08-megapixel stacked CMOS image sensor manufactured by FLIR (Indigo Systems). It delivers a 320 × 256 pixel array with a 30 µm pixel pitch, providing efficient photon collection at each photosite. The optical format spans a 12.294 mm diagonal with a 0.211111111 aspect ratio, matching the 2/3-inch optical format common in professional machine vision cameras. With 30 µm pixels, the sensor features large pixels optimised for high sensitivity and dynamic range in low-light and scientific applications.