(1888PressRelease)
October 09, 2007 - A newest and reasonable L-series ultra-wide-angle zoom lens Canon 17-40mm that is ideal for both film and digital SLRs. Canon 17-40mm has superior optics and guaranteed by the make use of three Aspherical lens basics, in adding up to a Super UD (Ultra-low Dispersion) glass part. Optical coating is optimized for make use of with digital cameras. Canon 17-40mm Lens focuses as close as 11 inches (0.28m) and offers together Canon full-time manual focus and a powerful ring-type USM for quick and quiet AF.
Canon 17-40mm has a stable f/4 maximum aperture and offers the selection of screw-in 77mm filters or a holder in the rear of lens for up to three set filters. Lastly, Canon 17-40mm Lens offers weather-resistant building alike to further high-end L-series lenses.
Regarding half the cost of the 16-35 f/2.8 Lenses, this L-series lens Canon 17-40mm have a completely new optical design with three Aspherical basics and a Super UD-glass part. The grouping of Canon 17-40mm Lens provides outstanding difference and sharpness, even next to the widest setting.
Canon 17-40mm is perfect for both film and digital SLRs and features the similar weather-resistant design, rear set filter holder and high-speed Ultrasonic Motor like the EF 16-35mm Lens.
For more details visit:
http://www.microglobe.co.uk/catalog/product_info.php?pName=canon-ef-1740mm- f4l-usm-lens
