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.
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