The Samyang 12mm T3.1 Fisheye for Nikon DSLRs is a manual focus VDSLR cine fish-eye lens. It creates a 180° rectangular image with Full Frame sensors (view measured corner-to-corner), and if used with smaller sensors a reduced curvilinear wide angle image. Two aspherical and three extra low dispersion lens elements, together with Ultra Multi Coating minimise chromatic aberrations and flare, and it focuses as close as 20cm. A geared focusing ring and uncoupled aperture ring enable precise and smooth operation for filming. A petal shaped lens hood is included to give maximum shading for the extreme angle of view.