Canon mount. Improved 2nd version of the popular Tokina ATX 11-16 f/2.8 lens.

Sharp and bright wide-angle lens for APS-C sensor size photographers
The Tokina 11-16mm f/2.8 AT-X 116 Pro DX II is the newer 2nd version of the popular and award-winning lens. The lens has been improved with coatings that prevent lens flare and improve light transmission.
The Tokina ATX 11-16 lens has a field of view of up to 104°, making it suitable, together with its high aperture (f/2.8), for shooting in confined spaces indoors and handheld in very low light. Popular among stargazers, among other things!
Manual and autofocus are selected by pulling or pushing the focus ring forward/backward
Specifications