Lens Lab
    SMC Pentax-A 50 mm f/ 1.7
    SMC Pentax-A 50 mm f/ 1.7

    SMC Pentax-A 50 mm f/ 1.7

    50mm · f/1.7

    Overview

    The SMC Pentax-A 50mm f/1.7 is a compact, all-metal manual focus lens (63x31mm, 165g) with a rubberized focus ring and smooth damping. Optically, center sharpness is decent wide open and improves on stopping down. Its six-blade aperture and full-frame compatibility suit budget-conscious Pentax shooters seeking a prime, though the aperture ring may be stiff on used copies.