Overview

The Mamiya-Sekor 50mm f/2 Auto is a sturdy, all-metal M42-mount lens from 1966, often overlooked but capable of beautiful, contrasty images. It is sharp from f/4 but soft wide open, with significant flare and contrast loss when pointed at the sun. The focus ring is smooth but less refined than competitors, and the lens is single-coated with a yellow tint. It suits vintage enthusiasts who appreciate its rendering and don't mind softness at wide apertures, but those seeking sharpness or better close-up performance may prefer the 55mm f/1.8.