ZEISS CP.2 15mm T2.9 T* ultra-wide-angle cine lens with metric scale and Canon EF mount. Fully corrected distortion and field curvature mean you get perfectly straight lines and edge-to-edge sharpness - even on full-frame 35mm cameras. An excellent lens for shooting in tight spaces.
The widest Compact Prime lens on Canon EF and PL-Mount is the new Carl Zeiss Compact Prime CP.2 15 T2.9 T*. The lens is designed specifically for installation on “full-size” matrices and does not “break” the perspective. The minimum focusing distance of the lens is only 30 cm.