Lens Lab
    RE Topcor 28 mm f. 2.8
    RE Topcor 28 mm f. 2.8

    RE Topcor 28 mm f. 2.8

    28mm · f/1.6

    Overview

    The RE Topcor 28 mm f/2.8 is a fully manual lens from Topcon's silver/black era, noted for its non-rotating filter threads and half-stop aperture clicks. Optical strengths are not detailed in the excerpts, but weaknesses are not mentioned either. Build quality is typical of the period, with a chromed bayonet hood mount. It suits users adapting vintage glass to mirrorless cameras via dumb adapters, though compatibility with Exakta adapters requires checking for Topcon control pins.