Canon EF 17-40 mm f/ 4 L USM Lens Parts Catalog

ENG-10

17 – 40 mm f/4

9 groups, 12 elements

f/22

Diagonal: 104° – 57° 30’

Vertical: 70° 30’ – 34°

Horizontal: 93° – 49° 20’

0.28 m/0.92 ft.

0.24

× (at 40 mm)

234 

× 365 mm – 100 × 150 mm / 9.2 × 14.4 inch – 3.9 × 5.9 inch (at 0.28 m)

77 mm

Max. Diameter and Length 83.5 

× 96.8 mm / 3.3 × 3.8 inch

475 g / 16.8 oz

EW-83E

E-77U

LP1319

• 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.