Lens Lab
    Nikon Nikkor 105 mm f/ 2.5 Ai
    Nikon Nikkor 105 mm f/ 2.5 Ai

    Nikon Nikkor 105 mm f/ 2.5 Ai

    105mm · f/2.5

    Overview

    The Nikon Nikkor 105mm f/2.5 Ai is a classic manual-focus portrait lens known for excellent sharpness and contrast, especially at f/2.5. It has low vignetting, with falloff gone by f/5.6. Build is all-metal with smooth focus and click-stop aperture. Weaknesses include manual focus only and limited compatibility with modern cameras without AI conversion. It suits portrait and general telephoto shooters seeking a compact, affordable lens with legendary optical performance.