 |
EF
17-40mm f4.0L USM
Product # CA8806A002
|
An affordable L-series ultra-wide-angle zoom
lens that's ideal for both film and digital SLRs. Superior optics
are assured by the use of three Aspherical lens elements, in
addition to a Super UD (Ultra-low Dispersion) glass element.
- Optical
coatings are optimized for use with digital cameras.
- This lens
focuses as close as 11 inches (0.28m), and offers both Canon's
full-time manual focus and a powerful ring-type USM for fast
and silent AF.
- It has
a constant f/4 maximum aperture, and offers the choice of screw-in
77mm filters or a holder in the rear of the lens for up to three
gel filters.
- Finally,
it offers weather-resistant construction similar to other high-end
L-series lenses.
|
| Specifications |
| |
|
| Focal Length
& Maximum Aperture |
17-40mm
1:4.0 |
| Lens Construction |
12 elements
in 9 groups |
| Diagonal Angle
of View |
74° -
29° |
| Focus Adjustment |
Ring USM |
| Closest Focusing
Distance |
0.9 ft. |
| Zoom System |
Rotating type |
| Filter Size |
77mm |
| Max. Diameter
x Length |
3.3"
x 3.8" |
| Weight |
17.6 oz |
EOS
Lenses | EOS Digital
SLR
7/20/08 Prices
and specifications subject to change without notice
|