Features Maximum T2.9 aperture for deep depth of view and increased area focus 11 aperture blades for smooth, circular bokeh Lens construction of 14 elements in 14 groups 270° focus rotation, 42° aperture rotation, 100° zoom rotation Lens markings in feet and meters 0.217x maximum magnification, 2.4x zoom ratio EF mount bayonet included; built-in lens support foot 77mm front filter thread 2.9′ minimum focusing distance Industry-standard 0.8 MOD focus, aperture, and zoom rings for use with follow focus systems
