Mamiya AE Prism Finder w/ A/S Matrix Metering-M645 Pro

This aperture-priority AE finder oFers both spot and average metering choices, as well as its own special auto-selection (A/S) function that switches between spot and averaged automatically to suit the shooting conditions. Provision to accept diopter correction lenses and Variable Diopter Flip-up Magnifier. For 645 Pro.