Lens Lab
    Pentax 55 mm f/ 1.8 SMC
    Pentax 55 mm f/ 1.8 SMC

    Pentax 55 mm f/ 1.8 SMC

    55mm · f/1.8

    Overview

    The Pentax 55mm f/1.8 SMC (Takumar) is a well-built M42 screw-mount lens, though it can unscrew if not locked. Optically, it has pleasing bokeh but is soft wide open with blue fringing; stopping to f/2.8 improves sharpness, though corners remain soft. It struggles with flare and contrast in bright light. Best suited for film users who appreciate its character, or digital shooters who accept its vintage flaws.