The Zeiss Compact Prime CP.2 18mm/T3.6 Cine Lens (EF Mount) is part of the second generation of CP cinema lenses that were the first to offer the affordability and optics of still-lens Distagons with the functionality and handling of a motion picture lens. What distinguishes the CP.2 from its PL-mount-only predecessor is its interchangeable lens mount, which allows the included Canon EF mount to be easily swapped out for an optional Nikon F or cinema-standard PL mount. For the first time, a single, affordable, professional quality lens can be used on both cinema and still cameras, opening up creative possibilities that keep your rig lightweight, versatile, and on budget. Note! Unlike the larger CP.2 lenses, the 18mm/T3.6 does not cover full-frame 35mm sensors. On cameras such as the Canon 5D Mark II, vignetting will occur.