Tokina's updated 11-16mm f/2.8 — CF coating version, same as ID 1431.
The Tokina 11-16mm f/2.8 CF is a constant f/2.8 ultra-wide zoom for APS-C cameras. The Tokina AT-X 11-16mm f/2.8 is a well-established APS-C ultra-wide zoom known for its consistent f/2.8 aperture; the CF designation may indicate a Cinema Focus variant with de-clicked aperture or close-focus specification. This entry: Canon EF mount (APS-C coverage).
f/2.8 constant aperture. 11-16mm zoom range (approximately 17.6-25.6mm equivalent on APS-C 1.6× crop). CF designation variant. At approximately 560g. 77mm filter thread. Canon EF mount (APS-C).
The Tokina 11-16mm f/2.8 Pro DX series has been popular for event video and indoor shooting on APS-C where a constant f/2.8 is needed at ultra-wide focal lengths. APS-C coverage only — will vignette on full-frame Canon bodies. Verify CF designation specifics against Tokina documentation.
On the used market the Tokina 11-16mm f/2.8 CF is an ultra-wide zoom for Canon EF APS-C cameras. Condition checks: 77mm front element, zoom ring smoothness, AF response. Canon EF mount — APS-C coverage only; use on EF-S bodies.