Sony FE 100-400mm F4.5 GM OSS, (SEL100400MC), (SEL100400MCW.SYX)

Sony FE 100-400mm F4.5 GM OSS | (SEL100400MC) | (SEL100400MCW.SYX)

The Sony FE 100-400mm F4.5 GM OSS is a next-generation G Master telephoto zoom lens designed to deliver high optical performance throughout the zoom range. Unlike previous 100-400mm models, this lens uses an internal zoom mechanism, so its physical length does not change when zoomed in, improving balance and control in real-world shooting conditions.

Designed for professional use and optimized for fast-moving subjects, the lens delivers strong sharpness, contrast, and subject isolation even at long focal lengths. With Sony's latest autofocus system, it can track fast and unpredictable subjects, such as birds in flight or athletes in motion, with high reliability.

A constant F4.5 aperture provides consistent exposure levels throughout the zoom range, making it easy to work in changing lighting conditions. Optical SteadyShot stabilization helps reduce camera shake when shooting handheld at long distances.

The lens also supports Sony teleconverters for extended reach when needed, and its design includes weather sealing, customizable controls, and a filter system for professional field use.

Main features

• Constant F4.5 aperture throughout the zoom range


• G Master optical quality


• Internal zoom and internal focus


• Very fast and accurate autofocus system


• Optical SteadyShot image stabilization


• Compatibility with 1.4x and 2x teleconverters


• High-performance tracking for fast subjects


• 11-blade circular aperture design for smooth background blur


• Dust and moisture resistant construction


• Filter support


• Customizable control ring and function buttons


• Designed for wildlife, sports, aviation and action photography

Technical characteristics

• Model: SEL100400MC


• Lens type: Super-telephoto zoom lens


• Mount: Sony E-mount


• Format: Full frame


• Focal length: 100-400mm


• Maximum aperture: F4.5 (fixed)


• Minimum aperture: F32


• Optical construction: 20 groups, 28 elements


• Aperture blades: 11


• Minimum focusing distance: 0.64 m to 1.5 m, depending on focal length


• Maximum magnification: 0.25x


• Image stabilization: Optical SteadyShot


• Zoom mechanism: Internal zoom


• Autofocus: XD Linear Motor


• Weight: approximately 1840 g


• Filter system: Drop-in filter slot


• Weather resistance: dust and moisture resistant