Sony FE 100-400mm f/5.6-8 OSS

Sony FE 100-400mm f/5.6-8 OSS, model code SEL100400, is a full-frame telephoto zoom lens for Sony E-mount mirrorless cameras, designed for wildlife, sports, travel, compressed landscapes, amateur bird photography, and long-distance shooting. The 100-400 mm focal range allows distant subjects to be brought closer while maintaining good compositional flexibility, while on APS-C cameras it provides an equivalent angle of view of approximately 150-600 mm. The variable f/5.6-8 maximum aperture helps reduce weight and dimensions, making the lens more portable than brighter professional telephoto zooms. The optical design consists of 15 elements in 10 groups, and the circular 9-blade diaphragm contributes to smooth out-of-focus rendering. Optical SteadyShot stabilization supports handheld shooting, while the minimum focusing distance of 1.13 m at 100 mm and 0.86 m at 400 mm enables a maximum magnification ratio of 0.41x, useful for close details and small subjects. The lens features manual zoom, a 67 mm filter thread, compatibility with Sony SEL14TC and SEL20TC teleconverters, included ALC-SH188 lens hood, dimensions of approximately 78.2 × 164.5 mm, and a weight of about 654 g. Sony FE 100-400mm f/5.6-8 OSS is suitable for users looking for a lightweight and stabilized telephoto zoom for the Sony full-frame system, with a broad focal range and good portability, while noting that the f/8 aperture at the longest focal length requires adequate lighting conditions or camera bodies with good high-ISO performance.