The Canon Cinema Prime CN-E 50mm T1.3 LF (EF) Lens is a 50mm fixed focal length lens designed for cinema-applications. It comes on a stand and is for use with the Canon EOS C300 and the Canon EOS C300 full-frame Canon EF DSLR.The lens is based on the Canon EF 50mm f/1.2L and is optimized for cine-use with updated optics and cladding and a completely redesigned mechanical construction. A fast 1.3 aperture achieves excellent light quality and an available 11-Blade Rounded Diaphragm along with the fast aperture produces strong Bokeh and circular highlights. The diaphragm ring is stepless, ultra-smooth and fully manual, even when used with a DSLR, offering handle detail. Sharp optical lens features capable of supporting up to 4K recording quality. The cn-e 50 was released with two familiar companions – the cn-e 24mm