http://t.co/3WeOYW8T - <br /><br />Top Deal Review - Canon EF 70-200mm f 4L USM Telephoto Zoom Lens for Canon SLR Cameras<br /><br />Technical Details<br />70-200mm telephoto zoom lens with f/4 maximum aperture for Canon SLR cameras<br />Inner focusing system and ring-type ultra-sonic monitor for quick and quiet autofocusing<br />Compatible with same tripod collar (sold separately) as EF 300mm f/4L USM lens<br />3.9-foot close-focusing distance; supports use of circular polarizing filter<br />Measures 3 inches in diameter and 6.8 inches long; weighs 25 ounces; 1-year warranty
