Canon EF 17-40/4L USM Lens
The Canon EF 17-40/4L USM is 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.
17 - 40mm
Comparable APS-C 1.6x Focal Length: 27 - 64 mm
|Camera Mount Type||Canon EF|
35mm Film / Full-Frame Digital Sensor
|Angle of View||104° - 57° 30'|
|Minimum Focus Distance||11.02" (28 cm)|
|Maximum Reproduction Ratio||1:4|
|Dimensions (DxL)||Approx. 3.29 x 3.81" (83.5 x 96.8 mm)|
|Weight||1.05 lb (475 g)|
- Canon EF 17-40mm f/4L USM Lens
- E-77 II 77mm Lens Cap
- Lens Dust Cap E (Rear)
- EW-83E Lens Hood
- Lens Case LP1319
- Limited 1-Year Warranty