Used Mamiya 645 FE401 AE Prism Finder | U8

The Mamiya FE401 AE Prism Finder is a versatile eye-level viewing accessory designed for the Mamiya 645 Super, Pro, and Pro TL medium-format camera systems. Featuring a precision optical prism with 0.79× magnification, it provides a bright, correctly oriented view for accurate composition and focusing. Its integrated TTL light meter offers Spot, Average, and Auto-Shift metering modes, giving photographers greater control over exposure in changing lighting conditions. The finder also supports aperture-priority automatic exposure, AE lock, and ±3 EV exposure compensation for convenient and precise shooting. An integrated eyepiece shutter and electronic exposure indicators make it particularly useful for studio, portrait, and location photography. Whether replacing an existing finder or upgrading a Mamiya 645 camera, the FE401 delivers a practical combination of traditional medium-format viewing and advanced exposure control.