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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
7034A009AA
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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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