Canon EF 17-40mm f4L USM
sku: 8806A002
Manufacturer Description
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.
Focal Length & Maximum Aperture:
17 - 40mm; 1:4
Lens Construction:
12 elements in 9 groups
Diagonal Angle of View:
104° - 57° 30'
Closest Focusing Distance:
0.28m
Filter Size:
77mm
Max. Diameter x Length:
83.5 x 96.8mm
Weight:
500g
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