Each of theCanon EF 8 15mm f4L Fisheye USM Overview Specialized and versatile, the EF 8 15mm f4L 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"> Each of the"> Each of theCanon EF 8 15mm f4L Fisheye USM Overview Specialized and versatile, the EF 8 15mm f4L 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"> Each of the"> Each of theCanon EF 8 15mm f4L Fisheye USM Overview Specialized and versatile, the EF 8 15mm f4L 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">