Mamiya Sekor C 180mm f/4.5 - Mamiya RB67-mount

The Mamiya Sekor C 180mm f/4.5 is a telephoto lens for the RB67 medium format system, providing an equivalent focal length of approximately 90mm on 35mm film. It is a staple lens for studio and location portraiture, offering a shallow depth of field and excellent subject separation. The lens incorporates a mechanical leaf shutter, allowing for flash synchronisation at all speeds up to 1/400th of a second. Used units should be checked carefully for shutter timing accuracy, as the mechanical Seiko shutters can slow down if lubricants have dried out. SDS inspects the glass for scratches, fungus, and internal haze. The aperture blades are checked for oil, and the lens is tested to ensure the shutter cocking mechanism interfaces correctly with the RB67 body.