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EF 17-40mm f/4L USM

Ultra-Wide Zoom

MSRP: $799.99

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Focal Length & Maximum Aperture

17 - 40mm; 1:4

Lens Construction

12 elements in 9 groups

Diagonal Angle of View

104° - 57° 30'

Focus Adjustment

Inner focusing system with USM

Closest Focusing Distance

0.28m / 0.9 ft.

Zoom System

Rotating type

Filter Size


Max. Diameter x Length, Weight

3.3 x 3.8, 1.1 lb. / 83.5 x 96.8mm, 500g



Compatible Supplies & Accessories

Canon offers a wide range of compatible supplies and accessories that can enhance your user experience with you EF 17-40mm f/4L USM that you can purchase direct. Scroll down to easily select items to add to your shopping cart for a faster, easier checkout. Visit the Canon Online Store



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† Prices and specifications subject to change without notice. Actual prices are determined by individual dealers and may vary.

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