Lens Lab
    Orion-18R 100 mm f/ 8
    Orion-18R 100 mm f/ 8

    Orion-18R 100 mm f/ 8

    100mm · f/8

    Overview

    The Orion-18R 100mm f/8 is a Soviet aerial/reproduction lens (KMZ, LOMO, KOMZ) with a modified aperture that can be opened to ~f/4 (MFlenses). Optically, it delivers impressive results wide open with good color, though it is prone to flare without a hood (MFlenses). Resolution is specified at 60/45 lines/mm (center/edge). Build includes a M49x0.75 filter thread and 69mm diameter. It suits users seeking a unique, fast-modified lens for creative work, but flare control is essential.