The 220 holder delivers a precise film image size of 56 x 41.5mm. It connects to the body of the camera and holds the film insert. Designed to make film loading and unloading efficient and easy. The holder offers 30 exposures, film speed of ISO 25 to 6400, and built-in double exposure provision. Film advance is performed by the camera's body winding mechanism. It has automatic film wind-stop release. The 220 holder is compatible with Mamiya PRO and Super bodies.