Lens Lab
    Tamron SP 300 mm f/ 5.6 Adaptall-2 model 54B
    Tamron SP 300 mm f/ 5.6 Adaptall-2 model 54B

    Tamron SP 300 mm f/ 5.6 Adaptall-2 model 54B

    300mm · f/5.6

    Overview

    The Tamron SP 300mm f/5.6 Adaptall-2 (54B) is a compact, well-built telephoto lens with close-focus to 1.4m and 1:3.3 macro, aided by a compensator group that maintains constant f-number. It is sharp wide open with smooth focusing, but exhibits purple/green fringing on digital sensors. Ideal for macro or birding where working distance is needed, it suits users who can correct CA in post.