Overview

The Mamiya-Sekor C 35mm f/3.5 is a manual focus lens for Mamiya 645 medium format cameras, often adapted to digital systems. Optically, it offers adequate sharpness, especially at f/16, with excellent corner sharpness on a tripod. Wide open, corners are soft with light falloff, but center sharpness is reasonable and bokeh is smooth. Weaknesses include lens flare with strong light sources and some barrel distortion, though correctable. Build quality is solid with an all-metal barrel and a reversible hood, but the f/3.5 aperture makes for a dimmer viewfinder. It suits photographers seeking an affordable wide-angle with character for architecture or casual use, provided they can manage flare and manual focus.