Lens Lab
    Pentax SMC K 135 mm f/ 2.5
    Pentax SMC K 135 mm f/ 2.5

    Pentax SMC K 135 mm f/ 2.5

    135mm · f/2.5

    Overview

    The Pentax SMC-K 135mm f/2.5 is a vintage manual-focus lens with excellent build quality, feeling 'like a rock' and featuring a smooth, well-damped focus ring (OpticalLimits). Optically, it offers good performance on APS-C DSLRs, but its main weakness is the lack of aperture priority on modern Pentax bodies, requiring stop-down metering (OpticalLimits). It suits photographers seeking an affordable telephoto lens for the Pentax K mount, especially those comfortable with manual operation.