Camera Lenses

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Fixed Focal Length Lens, for 35 mm SLR, Focus: Autofocus, Max Aperture: f/4, 17 Elements in 12 Groups, Filter size: 52 mm, Weight:...The 400mm f/4.0 DO IS USM is Canon's breakthrough in multi-layer diffractive optical lens technology. This sheds new ground for sports, nature and wildlife photographers, giving exemplary results in a size previously unheard of for a lens of such a focal length and aperture. Simply put, the size and ease of handling must be seen to be understood. Specifications: Filter Size: 52mm (Rear) [52mm drop-in filter holder required] F-Stop Range: 4-32 Minimum Focus Distance: 11.5' Magnification: 1:8.3 Angle Of View: 6 Degrees Groups/Elements: 12/17 Tripod Collar: Yes (removable) Length: 9.2 Max. Diameter: 5.0 Weight: 4.30 lb (with collar) Included Items: E145 Front Cap Rear Cap E ET-120 Hood Carrying Case Wide Strap 52mm Drop-In Gel Filter Holder (with glass filter mounted).

The EF 400mm f/4 DO IS USM is the worlds first super telephoto lens incorporating "Multi-Layer Diffractive Optical (DO) Element", for camera lenses, which corrects chromatic aberrations. By incorporating this optical element in the optical design, the EF 400mm f/4 IS USM is much smaller and lighter than a comparable lens having conventional optical elements. Comes complete with Canon ET-120 lens hood.