Lens Lab
    Minolta MD 7.5 mm f/ 4 fish-eye
    Minolta MD 7.5 mm f/ 4 fish-eye

    Minolta MD 7.5 mm f/ 4 fish-eye

    8mm · f/4

    Overview

    The Minolta MD 7.5mm f/4 fish-eye is a circular fisheye with a 180° field of view, producing a 22mm circular image on 35mm film (Rokkor Files). Optically, it uses 12 elements in 8 groups, unchanged across MC/MD versions (Rokkor Files). Strengths include extreme depth of field—sharp from 40cm to infinity at f/4 (Rokkor Files)—and six built-in filters. Weaknesses are chromatic aberration and a blue edge tint, though manageable (Rokkor Files). Build is fixed-focus, lightweight (360g), and includes MD-era features (Rokkor Files). Suits enthusiasts seeking creative, ultra-wide effects; care needed to avoid including tripod legs.