Description Autofocus lens for macro photography up to lifesize 1x magnification. Inner focusing affords a long working distance of 5. 9in. 149mm at 1x. A 3group floating system results in excellent delineation at all focusing distances. Ring USM for silent and highspeed AF and fulltime manual focusing also provided. . Features Entirely new optically with a threegroup floating system for exceptional closeup performance. The first lens in its class to feature innner focusing. The lens length never changes even at life size A secondary diaphragm blocks stray light at f/2. 8 increasing contrast when shooting wideopen. Ultrasonic Motor provides outstanding AF speed at all focusing distances. Wide manual focusing ring with smooth action and fulltime manual focus even in AF mode. . Specifications Lens Focal Length Maximum Aperture 100mm 1 2. 8 Lens Construction 12 elements in 8 groups Diagonal Angle of View 24 Focus Adjustment Inner focusing system with USM Closest Focusing Distance 0. 31m / 1 ft. film plane to subject Filter Size 58mm Max. Diameter x Length Weight 3. 1 x 4. 7 21. 1 oz. / 79. 0 x 119. 0mm 600g . Package content Canon EF 100mm f2. 8 Macro USM Macro Lens . Warranty 30 Day Warranty. Warranty covers manufacturing defects only. This product is not covered for misuse of product or damage due to mishandling. .
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