posted on Sep 2, 2009 at 2:59PM
Canon Intros New EF-S Zoom LensesBy Jared Newman
Versatility is the key feature in two new lenses from Canon, aimed at lightening the photographer's load.
The EF-S 15-85mm f/3.5-5.6 IS USM is a wide-angle lens that's touted as ideal for wedding and vacation photos. Its 24-136mm equivalent focal length on a cropped sensor DSLR translates to 5.6x standard zoom, and close focusing distance is 13.8 inches through the zoom range. The lens is constructed of 17 elements in 12 groups.
The EF-S 18-135mm f/3.5-5.6 IS is a super-zoom lens with an even greater range of 7.5x, at an equivalent focal length of 29-216mm on a cropped sensor DSLR. Closest focusing distance is 17.7 inches, and the lens has 16 elements in 12 groups. Canon says this is a perfect fit for photographers looking to step up from a standard kit lens.
Both lenses are designed for Canon's EOS EF-S mount bodies, and their debut coincides with the release of the EOS 7D camera. The two lenses include optical Image and they both use Canon's ring ultrasonic motor for superior auto focus. Other common features include ultra low-dispersion, aspherical elements, circular aperture to create a nice bokeh, or background blur, and lens coatings to reduce ghosting and flare.
The EF-S 18-135mm will be available first, coming at the end of September for $499.99. The EF-S 15-85mm has a price tag of $799.99, and is due at retail in October.