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Canon EF 17-40mm f/4L USM

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Canon EF 17-40mm f/4L USM. Ultra-wide high performance zoom lens offering excellent image quality

Availability: In stock


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Additional Information






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: 104° - 57° (43.2mm) 
Horizontal Angle of View: 93° - 49° (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




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