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Canon EF - Telephoto lens - 400 mm - f/4.0 DO IS USM - Canon EF at Backoffice
Canon EF - Telephoto lens - 400 mm - f/4.0 DO IS USM - Canon EF 7034A009
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This product is no longer available.
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The EF400mm f/4 DO IS USM is the world's first super telephoto lens incorporating the exclusive Canon-developed multi-layer diffractive optical element for camera lenses. The optical element, which incorporates light diffraction, is a major technological breakthrough, and it features an exceeding ability to correct chromatic and spherical aberrations and render high-quality images. By including this optical element in the lens design, the lens has achieved tremendous savings of 26% in overall length and 36% in weight compared to comparable lenses incorporating only conventional refractive optical elements. Moreover, the size and weight advantage comes at no cost to image quality, with the EF400mm f/4 DO IS USM delivering performance equivalent to conventional models in its class.Product Description | Canon EF telephoto lens - 400 mm | Lens System | Telephoto lens | Intended For | 35mm SLR, digital SLR | Mounting Type | Canon EF | Lens Aperture | F/4.0 | Focal Length | 400 mm | Min Focus Range | 3.5 m | Focus Adjustment | Automatic, manual | Lens Construction | 13 group(s) / 17 element(s) | Special Functions | Tele | Filter Size | 52 mm | Length | 23.3 cm | Weight | 1.94 kg |
GENERAL |
Length | 23.3 cm |
Diameter | 12.8 cm |
Weight | 1.94 kg |
LENS SYSTEM |
Type | Telephoto lens |
Special Functions | Tele |
Intended For | 35mm SLR, digital SLR |
Focal Length | 400 mm |
Lens Aperture | F/4.0 |
Minimum Aperture | F/32 |
Magnification | 0.12 |
Min Focus Range | 3.5 m |
Focus Adjustment | Automatic, manual |
Max View Angle | 6.2 degree(s) |
Lens Construction | 13 group(s) / 17 element(s) |
Filter Size | 52 mm |
Diaphragm Blades | 8 |
Mounting Type | Canon EF |
Features | Internal focusing system, Ultrasonic Motor (USM), full-time manual focusing, fluorite glass, rear focusing system, rear filter mount, AF stop, focus preset, diffractive optics |
MISCELLANEOUS |
Included Accessories | Lens hood, dust cap, lens cap |
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