The Mamiya 645 AF Zoom 55 110mm f/4.5 is a versatile autofocus zoom lens for the Mamiya 645 AF system. Its 55 to 110mm range provides an angle of view roughly equivalent to 34 to 68mm on 35mm film, making it suitable for landscapes, street photography, portraits and general photography.
The lens consists of 11 elements in 10 groups and has a constant maximum aperture of f/4.5, stopping down to f/32. The minimum focusing distance is 1.5 metres. It accepts 67mm filters and weighs approximately 870 grams. Autofocus is controlled by compatible Mamiya 645 AF cameras.
This is specifically the autofocus version of the 55 110mm and is different from the manual focus Mamiya Sekor C 55 110mm f/4.5 N made for the earlier M645 systems.
Serial number CA1023.