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 and color accuracy, and a Sub Wavelength coating has also been applied to control flare and ghosting for greater contrast. Balancing the refined optics, this 8-15mm f/4 also sports a ring-type USM mechanism to enable quick, quiet, and accurate autofocus performance, as well as full-time manual focus override. Additionally, this lens is weather-sealed and has a protective fluorine coating on the exposed elements for use in trying environmental conditions.Manufacturer Included Items:Canon EF 8-15mm f/4L Fisheye USM LensLens Cap for EF 8-15mm f/4L Fisheye USM LensLens Dust Cap E (Rear)EW-77 Lens Hood for EF 8-15mm f/4L Fisheye USM LensLP1219 Soft Lens CaseBundle Items Include:1 x Canon EF 8-15mm f/4L Fisheye USM Lens1 x Backpack with Padded Compartments for Cameras1 x Full Size Deluxe Tripod1 x Lens Cleaning Solution1 x Cleaning Cloth1 x Dust Blower1 x Lens Pen1 x Microfiber Cloth