What mount does the Canon EF 17-40 mm f/4.0L USM use?

The Canon EF 17-40 mm f/4.0L USM uses the Canon EF mount.

Canon Full frame

Canon EF 17-40 mm f/4.0L USM

Q: What is the Canon EF 17-40 mm f/4.0L USM?

Zoom lens, f/4 designed for landscape, architecture, astrophotography, street, documentary, everyday.

Q: What type of photography is the Canon EF 17-40 mm f/4.0L USM good for?

The Canon EF 17-40 mm f/4.0L USM excels in landscape, architecture, astrophotography, street, documentary, everyday photography with its f/4 maximum aperture and zoom lens design.

This is a full-frame zoom lens for Canon EF, covering 17-40 mm and a maximum aperture of f/4. It weighs 475 g, and was released in 2003. That combination suits landscape and architecture photography.

It is a zoom lens designed for full frame cameras. This wide-to-normal zoom lens features a f/4 maximum aperture, making it ideal for landscape, architecture, astrophotography, street, documentary, everyday. The optical design incorporates 12 elements / 9 groups, ensuring sharp image quality and minimal distortion. Despite its robust professional construction, the lens delivers exceptional optical performance.

f/4
Aperture: 17–40mm
Focal: 475 g
Weight: May 2003
Released

Canon site

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Good for landscapearchitecture

Astrophotography Street Documentary Everyday

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Specification

Manufacturer data

Focal length: 17-40 mm
Maximum aperture: f/4
Minimum aperture: f/22
Number of diaphragm blades: 7
Optical construction: 12 elements / 9 groups
Minimum focusing distance: 0.28 m (11.02 inches)
Filter size: 77 mm
Lens mount: Canon EF
Dimensions: 83.5 x 96.8 mm
Weight: 475 g (16.76 oz)
Lens type: Zoom lens
Image stabilization: No
Max Format size: Full frame
Aperture ring: No
Usage: Landscape, Architecture, Astrophotography, Street, Documentary, Everyday