A versatile normal-length prime, the Schneider Kreuznach 80mm f/2.8 LS AF Lens from Phase One provides a 35mm-equivalent focal length of 50mm when used with Credo 80/60 digital backs, or 63mm with Credo 50/40 digital backs. The integrated leaf shutter offers precise shutter speed control and enables flash synchronization at speeds up to 1/1600 sec. The normal focal length is ideal for portraiture and lifestyle photography, as well as nature and landscape photography due to the minimal vibration caused by the leaf shutter. A rear ring permits quick switching between autofocus and manual focus and an integrated depth of field scale facilitates easy setting of hyperfocal focus positions. Designed for 645 AF-mount camera bodies. Normal-length prime is ideal for a wide variety of applications, including portraiture, lifestyle, and landscape photography. When used on a Credo 80/60 digital back, the lens will provide a 35mm-equivalent focal length of 50mm. When used on a Credo 50/40 digital back, the equivalent focal length will be 63mm. Leaf shutter affords flash sync at shutter speeds up to 1/1600 sec. Dedicated control ring allows fast switching between auto and manual focus positions.