Rokinon RK8MV-C 8mm T3.8 Cine Fisheye Lens for Canon Video DSLR with Declicked Aperture 8mm Ultra wide cine fisheye lens with 180 degrees angle of view Feature declicked aperture for easy video shooting Constructed of 10 elements in 7 groups & features built-in petal type hood Works best with Canon APS-C image sensors Seamless Aperature shifting from T3.8-T22