Tokina 12-28mm f4 AT-X PRO DX V Lens - Canon EF-S Fit

Tokina 12-28mm F4 AT-X PRO DX V Lens - Canon Fit (p/n 710030.0) . Designed for Video DSLR use, the AT-X Pro V Series is equipped with a follow focus gear. However it also has easy switching between manual and auto focus by simply moving the focus clutch ring backwards or forwards. It also has a constant f/4.0 minimum aperture and super low dispersion glass for extremely low color aberration. Designed for APS-C sensors, this lens has a carefully designed optical arrangement which also includes an aspherical lens element for extra sharpness. Other features include a near-circular 9-blade aperture for attractive bokeh and multi-layer coatings for improved contrast.