Canon EF 400mm F4 DO IS II USM Overview
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Manufacturer description: The EF 400mm f/4 DO IS II USM lens delivers brilliant high-speed performance for professionals with minimal glare and superb image quality. Taking advantage of the best in lens technology, it features gapless dual-layer diffractive optical elements for improved diffraction efficiency with reduced flare. These elements are arranged with a large-diameter ground aspheric lens and a UD lens for a new level of sharpness and clarity. New coatings help to reduce ghosting, ensure excellent color balance and reduce fingerprints on the front and rear of the lens.
Professional L-series dust- and water-resistant construction is complemented by impressive performance: a 3 mode Image Stabilization system offers up to four stops of compensation and can even prevent operational errors when the camera is mounted on a tripod. AF stop buttons placed on the front of the lens can automatically stop focusing at any time; full time manual focus ensures complete control no matter the AF mode, and a Power Focus (PF) mode makes for smooth focus transitions when shooting movies.
Lens type | Prime lens |
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Focal length | 400 mm |
Image stab. | Yes (4 stops) |
Lens mount | Canon EF |
Max aperture | F4 |
Min aperture | F32 |
Min focus | 3.30 m (129.92″) |
Max magnification | 0.13× |
Weight | 2100 g (4.63 lb) |
Length | 233 mm (9.17″) |