MODEL- 8806A002 VENDOR- CANON
FEATURES- EF 17~40 f/4L USM Lens
A new and affordable L-series ultra-wide-angle zoom lens that is
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 USB 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
Lens Construction : 12 elements in 9 groups
Diagonal Angle of View : 104 degrees - 57 degrees 30 feet
Focus Adjustment : Inner focusing system with USM
Closest Focusing Distance : 0.28m/0.9 ft.
Zoom System : Rotating type
Filter Size : 77mm
Max. Diameter x Length, Weight : 3.3" x 3.8", 1.1 lbs.
canonlens
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