Lens Lab
    Tamron SP 90 mm f/ 2.5 Adaptall-2 model 52B
    Tamron SP 90 mm f/ 2.5 Adaptall-2 model 52B

    Tamron SP 90 mm f/ 2.5 Adaptall-2 model 52B

    90mm · f/2.5

    Overview

    The Tamron SP 90mm f/2.5 Adaptall-2 model 52B is a manual-focus macro lens praised for excellent sharpness and pleasing bokeh. Its all-metal build feels solid but heavy. Weaknesses include a short focus throw at distance and a potential purple reflection issue. It achieves 1:2 magnification natively, requiring an extension tube or teleconverter for 1:1. Best suited for macro and portrait photographers who appreciate vintage character and don't mind manual focus.