Mamiya 645 Waist-Level Finder S (Sportsfinder) for M645, 1000S

Mamiya Waist-Level Finder S allows viewing of the image area from above where the image is upright, but reversed left-to-right. It has a roof pentaprism permitting viewing of the image via the camera's eyepiece. The finder opens and closes with a single touch. It has a 1.3x magnification with standard lens at infinity, interchangeable diopter correction lenses with standard magnifier, built-in sports finder showing the field for standard lens and accepts mask for 110, 150, and 210mm lenses. 80% of the field is displayed.