Canon LENS 17-40/4 L USM
- Capture striking architecture and expansive landscapes with this ultra-wide-angle L-series lens
- Shoot hand-held and in low light conditions with a fixed aperture of f/4
- Get closer to your subjects with 0.28 m focusing distance through the entire zoom range
- Ensure accurate colour balance and enhance contrast along with reduced ghosting and flare with Super Spectra coating
- Produce sharp, high-contrast images with Super UD (ultra-low dispersion) elements to suppress chromatic aberrations
- Be prepared for split-second moments with a fast, responsive Auto Focus with Ultra-Sonic Motor (USM)
- Use specialised filters, such as polarisers and graduates with ease thanks to the non-rotating lens
- Compatible with all DSLR cameras including full frame and EOS M mirrorless with an EF-EOS M Mount adapter
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 | |
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Minimum aperture number | 4 |
Closest focusing distance | 0.28 m |
Maximum aperture number | 22 |
Number of diaphragm blades | 7 |
Lens mount interface | Canon EF |
Focal length range | 17 – 40 mm |
Lens viewing angle, diagonal | 104 – 57.5° |
Lens type | Wide zoom lens |
Lens structure (elements/groups) | 12/9 |
Component for | SLR |
Performance | |
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Auto focus | Yes |
Manual focus | Yes |
AF actuator | USM |
Design | |
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Product colour | Black |
Weight & dimensions | |
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Weight | 500 g |
Length | 96.8 mm |
Filter size | 77 mm |
Diameter | 8.35 cm |
Other features | |
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Magnification | 0.24x |