Sony: Meet the World’s Lightest 400mm F4.5 Prime – Meet the Sony FE 400mm F4.5 GM OSS Lens
A mobile G MasterTM 400 mm prime you can shoot handheld
G Master image quality and advanced AF combine in a 400 mm prime lens that redefines super-telephoto prime potential. With a compact E-mount body you have a perfectly balanced, mobile system that can capture sharp details when shooting wildlife, sports, trainspotting, and more with unprecedented ease, even when handheld. Explore a new world of super-telephoto freedom.
Expected Price: $2,699.99
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Also Announced: Sony: Meet the World’s Lightest 600mm F6.3 Prime
Sony: Meet the World’s Lightest 400mm F4.5 Prime
The compact, lightweight, easy super-telephoto prime
This high-performance 400 mm F4.5 super-telephoto prime lens is the world’s lightest1 at just 994 g (35.1 oz., minus tripod foot). An extraordinary combination of G Master optics and the latest mechanical design achieves remarkably low weight, smooth handling, and minimum fatigue while delivering outstanding image quality when shooting handheld. Overall length is just 242 mm (9-1/2 in.) for outstanding mobility.
Superb G Master sharpness for breathtaking detail
Super ED (Extra-low Dispersion) and ED glass elements in an advanced optical design minimize aberration for high resolution that befits the G Master brand. Sony’s original Nano AR Coating II effectively suppresses flare and ghosting for superior clarity and contrast in backlit conditions. An 11-blade circular aperture and individually optimized spherical aberration contribute to smooth, creamy G Master bokeh.
AF that reliably captures challenging subjects
Two of Sony’s high-thrust XD (extreme dynamic) Linear Motors work with an advanced algorithm to bring out the full AF speed and precision potential of the latest camera bodies. Focus and subject tracking are fast, precise, and quiet. Erratic wildlife movement and sports action are reliably tracked and captured, even when shooting 120 fps bursts2 with the α9 III body, for example.
Enhanced shooting freedom and control
Optical image stabilization with selectable modes delivers sharp images when shooting handheld. The lens and a compatible body can work in concert for even more effective stabilization.3 Four focus hold buttons and a function ring4 can be customized as needed, while Full Time DMF and Focus Range Limit switches offer flexible focus control. Focal length can be extended to 800 mm with an optional teleconverter.5
Reliable in challenging outdoor conditions
A dust and moisture resistant design6 ensures high reliability in outdoor conditions where light rain and airborne dust might otherwise be a problem. The front lens element features a fluorine coating that prevents contaminants from sticking to the lens surface while making it easier to clean.
- 1. As of the Sep. 2026 product announcement. Sony survey of full-frame super-telephoto lenses with a maximum aperture of F4.5 or faster that include a 400 mm focal length.
- 2. Not including the tripod foot.
- 3. Sony tests. Maximum continuous shooting speed may be lower in some conditions.
- 4. SEL14TC and SEL20TC teleconverters supported.
- 5. Refer to Sony’s support siteopens in a new window for compatible camera body info: https://www.sony.net/dics/fnc1002/
- 6. Functions that can be assigned to the Function Ring will depend on the camera used. Refer to the corresponding camera Help Guide for details. Some functions may not be available with some cameras; in such cases Power Focus is assigned by default.
- 7. Not guaranteed to be 100% dust and moisture proof.