Lens Lab
    Promaster 100 mm f/ 3.5 MC Macro
    Promaster 100 mm f/ 3.5 MC Macro

    Promaster 100 mm f/ 3.5 MC Macro

    100mm · f/3.5

    Overview

    The Promaster 100mm f/3.5 MC Macro (rebadged Cosina) offers good sharpness stopped down and decent results wide open, but autofocus is extremely slow and noisy, and manual focus is loose. Build quality feels cheap, though it has a metal mount. It includes a matched macro adapter for 1:1 life-size, but image quality softens with the adapter. Best suited for budget-conscious macro photographers who can work with manual focus or stationary subjects.