ENG-13Specifications¡The lens length is measured from the mount surface to the front end of the lens. Add 21.5 mm when includingthe lens cap and dust cap.¡The size and weight listed are for the lens only, except as indicated.¡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.Focal Length/ApertureLens ConstructionMinimum ApertureAngle of ViewMin. Focusing DistanceMax. MagnificationField of ViewFilter DiameterMax. Diameter and LengthWeightHoodLens CapCaseTripod CollarEF135mm f/2L USM135 mm f/28 groups, 10 elementsf/32Diagonal: 18°Vertical: 10°Horizontal: 15°0.9 m / 3.0 ft.0.19 ×124 × 185 mm /4.9 × 7.3 inch (at 0.9 m)72 mm / 2.8 inch82.5 × 112 mm / 3.2 × 4.4 inch750 g / 26.5 ozET-78 IIE-72ULP1219–EF200mm f/2.8L II USM200 mm f/2.87 groups, 9 elementsf/32Diagonal: 12°Vertical: 7°Horizontal: 10°1.5 m / 4.9 ft.0.16 ×152 × 226 mm /6.0 × 8.9 inch (at 1.5 m)72 mm / 2.8 inch83.2 × 136.2 mm / 3.3 × 5.4 inch765 g / 27.0 ozET-83B IIE-72ULP1222Ring-type tripod mountingsocket A II (B) (Sold separately)EF300mm f/4L USM300 mm f/47 groups, 8 elementsf/32Diagonal: 8° 15'Vertical: 4° 35'Horizontal: 6° 50'2.5 m / 8.2 ft.0.13 ×185 × 275 mm /7.3 × 10.8 inch (at 2.5 m)77 mm / 3.0 inch90 × 213.5 mm / 3.5 × 8.4 inch1165 g / 41.1 ozBuilt-inE-77ULZ1128Ring-type tripodmounting socket A II (W)EF400mm f/5.6L USM400 mm f/5.66 groups, 7 elementsf/32Diagonal: 6° 10'Vertical: 3° 30'Horizontal: 5° 10'3.5 m / 11.5 ft.0.12 ×194 × 291 mm /7.6 × 11.5 inch (at 3.5 m)77 mm / 3.0 inch90 × 256.5 mm / 3.5 × 10.1 inch1250 g / 44.1 ozBuilt-inE-77ULZ1132Ring-type tripodmounting socket A II (W)