Lens Lab
    Isco-Göttingen Westar 100 mm f/ 4.5
    Isco-Göttingen Westar 100 mm f/ 4.5

    Isco-Göttingen Westar 100 mm f/ 4.5

    100mm · f/4.5

    Overview

    The Isco-Göttingen Westar 100mm f/4.5 is a manual focus lens that performs better than some negative reviews suggest, according to Roka on MFlenses forum, who found it pleasing on a Sony a7 with heavy cropping. Mos6502 notes the similar Isconar version performs 'ok' and is better than other early ISCO lenses, and easy to find. Optical strengths are decent but not exceptional; weaknesses are not explicitly stated but implied by mixed reviews. Build and handling are not detailed. It suits photographers seeking an affordable, vintage 100mm lens for casual use, especially on mirrorless cameras.