Canon EF-S 17-55 f/2.8 IS USM EF-S17-55mm F2.8 IS USM Instruction Manual - Page 12

10 Specifications Focal Length/Aperture Lens Construction Minimum Aperture Angle of View Min. Focusing Distance Max. Magnification Field of View Filter Diameter Max. Diameter and Length Weight Hood Lens Cap Case 17 - 55 mm f/2.8 12 groups, 19 elements f/22 Diagonal: 78° 30' - 27° 50' Vertical: 48° - 15° 40' Horizontal: 68° 40' - 23° 20' 0.35 m/1.2 ft. 0.17 × (at 55 mm) approx. 207 × 310 - 88 × 131 mm/8.1 × 12.2 - 3.5 × 5.2 inch 77 mm 83.5 × 110.6 mm/3.3 × 4.4 inch 645 g/22.7 oz EW-83J (Sold separately) E-77U LP1219 (Sold separately) ¡Equivalent to 27-88 mm in the 35mm film format. ¡The lens length is measured from the mount surface to the front end of the lens. Add 21.5 mm when including the lens cap and dust cap. ¡The size and weight listed are for the lens only, except as indicated. ¡The EF1.4X II/EF2X II extenders cannot be used with this lens. ¡Aperture settings are specified on the camera. ¡All data listed is measured according to Canon standards. ¡Product specifications and appearance are subject to change without notice. ENG-11