The tokina Cinema ATX 16-28mm T3, canon EF Mount is a version of tokina's
wide-angle DSLR zoom lens, re-engineered for video use and Cap,able of producing
images suitable for 4K Cap,ture. It covers full-frame 35mm image sensors and is
a parfocal lens, enabling you to maintain focus throughout a zoom move. The
Cinema ATX 16-28mm can open up to a T3.0 aperture throughout its zoom range,
eliminating the need for exposure compensation on the tight end of the zoom.
The lens design also reduces the breathing and image shifting sometimes
encountered while zooming and focusing.