EF 17-40mm f/4L USM ultra-wide-angle zoom lens * compatible with Canon EOS SLR cameras * Canon L Series lens with three aspherical elements and one Super UD (Ultra-low Dispersion) element for superior image quality * available full-time manual focusing * weather- and dust-resistant construction * ring-type Ultrasonic Motor for fast, silent autofocus * built-in gelatin filter holder * minimum aperture: f/22 * minimum focus distance: 11 inches * constructed of 12 elements in 9 groups * more info

Inner focusing system with USM Closest Focusing Distance 0.28m / 0.9 ft. Zoom System Rotating type Filter Size 82mm Max. Diameter x Length, Weight 3.3 x 4.1, 1.3 lb. / 83.5 x 103mm, 600g more info

Product Features

Description

Advance Vision Professional Digital Super Wide Angle attaches to most cameras, camcorders and lenses with 58mm filter threads. The world's finest super wide panoramic lens attachment. As it fits on any 58mm thread, it in turn allows further use of any 67mm thread filter, for even greater versatility, image enhancement and special effects capability. Optimized for use in digital equipment. Among the many makes whose products it fits are Sony, JVC, Olympus, Canon, Nikon and others.

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