Canon EF 400mm f/2.8L IS III USM EF400mm f/2.8L IS III USM Instructions - Page 28

Specifications Focal Length/Aperture Lens Construction Minimum Aperture Angle of View Min. Focusing Distance Max. Magnification Field of View Filter Max. Diameter and Length Weight Hood Lens Cap Case 400mm f/2.8 13 groups, 17 elements f/32 Horizontal: 5° 10' Vertical: 3° 30' Diagonal: 6° 10' 2.5 m/8.2 ft. 0.17× Approx. 202 × 135 mm/7.95 × 5.31 in. (at 2.5 m / 8.2 ft.) Any 52(WIII)-series drop-in filter Approx. 163 × 343 mm/6.42 × 13.50 in. Approx. 2840 g/100.2 oz ET-155 (WIII) ET-155B (sold separately) E-180E LS400 400E (sold separately) OO The lens length is measured from the lens mount surface to the front end of the lens. OO The max. diameter × length and weight listed are for the lens only. OO The Close-up Lenses 250D and 500D cannot be attached. OO Aperture settings are specified on the camera. OO All data listed is measured according to Canon standards. OO Product specifications and appearance are subject to change without notice. ENG-27