A lightweight, compact 400 mm prime
This high-performance 400 mm F4.5 super-telephoto prime lens weighs just 994 g (35.1 oz.) despite offering innovative G Master™ optics and extraordinary image quality. Balance is excellent too, affording smooth, easy handling and minimum fatigue when shooting handheld. Overall length is just 242 mm (9-1/2 in.) for outstanding mobility.

G Master sharpness for breathtaking detail
Super ED (Extra-low Dispersion) and ED glass elements in an advanced G Master optical design minimise aberration for stunning resolution, while Sony’s Nano AR Coating II suppresses flare and ghosting for superior clarity and contrast, even in backlit conditions that are often encountered when shooting wildlife and other outdoor subjects.

Individually optimised for exquisite bokeh
In addition to featuring an innovative new optical design, the spherical aberration of each lens is individually calibrated to deliver optimum bokeh quality. An 11-blade circular aperture contributes to smooth, beautiful ball bokeh. Gorgeous G Master bokeh can really make subjects stand out, especially at a super-telephoto focal length.

Fast, precise AF captures the moment
Two of Sony's advanced XD (extreme dynamic) Linear Motors and a refined algorithm bring out the full AF potential of the latest camera bodies. Focus and subject tracking are fast, precise, and quiet. Unpredictable subject movement is reliably tracked and captured, even when shooting 120 fps bursts with the α9 III body.

A great choice for movies
Innovative lens technology ensures that focus breathing is effectively suppressed for smooth, professional looking movies. The XD Linear Motor drive system and circular aperture unit are quiet too, so movie audio won’t be spoiled by lens noise or vibration. Linear Response MF supports direct, intuitive manual focus control when needed.

800 mm with optional teleconverter
An optional teleconverter can be used to extend focal length up to 800 mm for even greater reach when you want to capture distant wildlife or other subjects.

Enhanced shooting freedom and control
Optical image stabilisation with selectable modes delivers stable framing and sharp images when shooting handheld. The lens and a compatible body can work in concert for even more effective stabilisation.

Customisable for any shooting style
Four focus hold buttons allow easy access in any orientation. A function ring can be assigned to control APS-C/Full Frame switching, Preset Focus, or Power Focus. A dedicated switch is also provided for optical stabilisation ON/OFF switching and mode selection.

Quick, easy focus adjustment
If focus locks onto the wrong subject, it can be returned to the intended subject simply by rotating the focus ring when the Full-time DMF switch is ON. A Focus Range Limit switch allows the lens’s focus range to be limited for faster focusing. This type of detailed control significantly enhances overall focus flexibility.

Reliable in challenging outdoor conditions
A dust and moisture resistant design 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.

Recycled materials in our lenses
As part of our Road to Zero initiative, over 23 % of the total plastic weight consists of recycled plastic. At the component level, the proportion of recycled material reflects its performance needs: over 12 % of the plastic in the lens barrel consists of recycled plastic, over 38 % in the lens hood, and over 78 % in the lens caps.