Bundle Items Include: 1 x Canon EF 8-15mm f/4L Fisheye USM Lens, 1 x Lens Cap Keeper, 1 x Cleaning Kit. Specialized and versatile, the EF 8-15mm f/4L Fisheye USM is a Canon L-series lens offering flexibility to a conventionally niche lens type. Capable of producing both circular and rectangular fisheye effects, this lens is characterized by its notable distortion and rounded image quality along with an immense 180 angle of view at the 8mm position. The optical design incorporates two ultra-low dispersion glass elements to limit chromatic aberrations and color fringing for high clarity.. Unique fisheye zoom is designed for full-frame Canon EF-mount DSLRs, however can also be used with APS-C models where it provides a 12.8-24mm equivalent focal length range. Constant f/4 maximum aperture maintains consistent illumination throughout the zoom range. Zoom allows you to change from a circular 180 fisheye look to a rectangular image. Both ends produce dramatic, creatively distorted