The smallest 400mm zoom on the market, with an f/5.6 aperture and a fast internal focus system with which heavier glass elements don't have to rotate during focusing, making this lens much faster than other models.
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Contact| Mount availability: | CANON EOS, NIKON-D, |
| Focal length: | 80 to 400mm |
| Maximum aperture: | f/4.5-5.6 |
| Minimum aperture: | f/32 |
| Optical construction: | 16 elements in 10 groups |
| SD glass: | One elements |
| Coatings: | Multi-layer |
| Angle of view: | 29° 50' to 6°13' |
| Minimum focus distance: | 2.5m (8.2 ft.) |
| Reproduction ratio: | 1: 5.4 |
| Zooming system: | Rotary type |
| Number of diaphragm blades: | 8 |
| Filter size: | 72mm |
| Maximum outer diameter: | 77.2mm (3.0in.) |
| Dimensions: | 3.1 in. (79mm) X 136.5 mm (5.4in.) |
| Weight: | 1020 g (35.9 oz..) |
| Lens Hood | BH-725 |
| Availability: | June, 2006 |
The smallest 400mm zoom on the market, with an f/5.6 aperture and a fast internal focus system with which heavier glass elements don't have to rotate during focusing, making this lens much faster than other models.