Canon EF 17-40mm USM f4 lens

Ultra-wide high performance zoom lens offering excellent image quality. Dust-proof and moisture-proof construction. Rear focusing and ring USM for silence and high-speed AF. 2 UD and 3 types of aspherical elements reducing chromatic aberration of magnification and providing superb image quality. Non-rotating front element during focus.

Focal Length&Max. Aperture: 17-40mm 1:4
Filter Diameter: 77mm
Magnification with Extension Tube EF12: 0.83x - 0.32x
Magnification with Extension Tube EF25: 1.02x - 0.70x
Diagonal Angle of View: 104ø - 57ø (43.2mm)
Horizontal Angle of View: 93ø - 49ø (36mm)
Lens construction: 12 elements in 9 groups
Minimum aperture: f/22
No. of aperture blades: 7 (circular aperture)
Closest focusing distance (m): 0.28m
Focus drive: Ultrasonic
Dimensions: 83.5mm dia. x 96.8mm
Weight: 475g

Compare to other products in the Zoom lenses range.

Compare to other products in the Canon range.

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Product No. 1003398

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