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Zoom Lens 17-40mm F/4.0 L Usm

Part Number:
8806A007

Introduction

The EF 17-40mm f/4L USM Lens is an ultra-wide-angle lens producing stunning clarity in a range of focal lengths. Its compact, lightweight body makes it an ideal travel companion - suited to interiors, architecture and landscapes, fitting more in the frame without the need to step back. Produce consistent exposures with the large f/4 aperture over the 17-40 mm zoom range and create softer background blur with a 7-blade circular aperture diaphragm. Part of the Canon professional L-series flagship range, its designed for robust handling and resistant to dust and moisture.

Lens system

Component for

SLR

Lens type

Wide zoom lens

Lens structure (elements/groups)

12/9

Lens viewing angle, diagonal

104 - 57.5°

Focal length range

17 - 40 mm

Minimum aperture number

4

Number of diaphragm blades

7

Closest focusing distance

0.28 m

Maximum aperture number

22

Lens mount interface

Canon EF

Performance

Auto focus

Y

Manual focus

Y

AF actuator

USM

Design

Product colour

Black

Weight & dimensions

Length

96.8 mm

Weight

500 g

Diameter

8.35 cm

Filter size

7.7 cm

Other features

Magnification

0.24x

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