Lens Lab
    Sony FE 100-400mm F4.5-5.6
    Sony FE 100-400mm F4.5-5.6

    Sony FE 100-400mm F4.5-5.6

    100–400mm · f/4.5–5.6

    Overview

    The Sony FE 100-400mm F4.5-5.6 GM OSS is a professional-grade telephoto zoom offering strong optical performance with high resolution and attractive bokeh. Weaknesses include moderate distortion in RAW and potential condensation issues in high humidity. Build quality is robust with magnesium-alloy construction and weather sealing, though the zoom extension can feel less smooth. Handling is aided by a torque adjustment ring and fast AF. It suits wildlife, sports, and general telephoto users seeking a versatile, portable lens.