Canon EF 17-40mm f4.0 L-series USM Autofocus Ultra Wide Angle Lens for Canon SLRs. Wonderful lens and quite inexpensive for an L lens. Comes with both caps and lens shade. Works perfectly on all Canon DSLRs. One of the bayonets on the lens is damaged. Somehow about half of one of two bayonets is missing. Nevertheless, the lens shade works just fine and you won’t notice. Here are the tech specs from Canon. Diagonal angle of view 104° 57° 30. 3 aspherical lens elements and super UD glass element create superior optics in all conditions, Closest focusing distance: 0.9 feet. Powerful ring type ultrasonic monitor (USM) produces fast and silent autofocusing, Focuses as close as 11 inches, supports screw in 77 millimeter filters or up to 3 gel filters. Rounded seven-blade diaphragm contributes to a pleasing out of focus quality that benefits the use of shallow depth of field and selective focus techniques. Suitable for Wedding/Nature Photography, Weather resistant construction, Water and Dust Resistant, measures 3.3 inches in diameter. The broken bayonet I mentioned can also be thought of as a flange on the lens where the lens hood attaches. There are two of them and half of one of them is missing. It’s not a problem getting the hood on and off. The item “Canon EF 17-40mm f4.0 L-series USM Autofocus Ultra Wide Angle Lens for Canon SLR” is in sale since Saturday, November 20, 2021. This item is in the category “Cameras & Photo\Lenses & Filters\Lenses”. The seller is “cha-4084″ and is located in Boulder, Colorado. This item can be shipped to United States.
- Compatible Brand: For Canon
- Focus Type: Auto
- Brand: Canon
- Maximum Aperture: f/4
- Series: Canon “L”
- Type: USM Lens
- Mount: Canon EF
- Focal Length: 17-40mm