MC Zenitar C 2.8/16 Fishe-eye short throw ultra wide angle lens for Canon. Focal length, mm:16. Maximum aperture:2.8. Number of aperture blades:6. Frame format, mm:36×24. Field of view angle °180. Lens type:”Fish eye”. Optical design:11 lenses in 7 groups. Minimum focusing distance, m:0.3. Interchangeable short-focus ultra-wide-angle compact lens MC Zenitar 2.8/16 “Fisheye” is designed for full-frame SLR cameras and has the ability to obtain a view of 180 degrees along the diagonal of the frame.