Lens Lab
    Access SQ 135 mm f/ 3.5
    Access SQ 135 mm f/ 3.5

    Access SQ 135 mm f/ 3.5

    135mm · f/3.5

    Overview

    The Access SQ 135mm f/3.5 is a vintage manual-focus telephoto lens, also known as Photax Paragon. User-submitted test photos on a Pentax K-x DSLR show mixed results: at f/8, sharpness is acceptable (Christopher Britt, rating 3.5/5), but wide open at f/3.5, image quality drops significantly (rating 2/5). Build quality is typical of its era, all-metal. It suits budget-conscious photographers interested in classic rendering, but optical performance is limited, especially at maximum aperture.