The IMX294 is a 4/3-inch, back-illuminated sensor with a diagonal size of 23.2mm and a resolution of 4,144x2,822. In 14-bit mode the camera will run at around 16fps at full resolution and up to 25fps in 10-bit mode. When the camera is used in ROI mode, the frame rate can run up to 120fps. HGC (high gain conversion) mode switches on when the gain goes over 120 and this helps to keep the dynamic range constant. The 63700e full well capacity (the amount of charge an individual pixel can hold before saturating) is three times that of an ASI 1600 camera’s, making it very sensitive and ideal for electronically assisted astronomy (EAA), live stacking and live displays at outreach events. What this really helps with is cutting down the saturation of stars even when capturing long exposures, which has been a problem with some CMOS sensors in the past.