Lens Lab
    Tamron SP 500 mm f/ 8 Adaptall-2 model 55BB
    Tamron SP 500 mm f/ 8 Adaptall-2 model 55BB

    Tamron SP 500 mm f/ 8 Adaptall-2 model 55BB

    500mm · f/8

    Overview

    The Tamron SP 500mm f/8 Adaptall-2 model 55BB is a compact, lightweight mirror lens offering affordable super-telephoto reach. Optically, it delivers good contrast and can be sharp under ideal conditions, but resolving power is limited, especially at medium distances. Its fixed f/8 aperture and lack of stabilization make focusing challenging, with a dark viewfinder on DSLRs and short focus throw. Build quality is sturdy with a smooth focus ring. It suits photographers willing to work around its limitations for a portable, budget-friendly 500mm lens.