Tokina 16-28mm f2.8 Pro FX is an Auto Focus (AF)
Wideangle Zoom lens with 35mm FF max sensor coverage and it is designed to be used with Canon EF mount cameras.
Lens Mount
Tokina 16-28mm f2.8 Pro FX is compatible with cameras that have Canon EF lens mount.Some of the latest released cameras with Canon EF lens mount are
Canon 1D X III,
Canon 6D MII and
Canon 5D MIV.
Sensor Coverage
Max sensor coverage of Tokina 16-28mm f2.8 Pro FX is 35mm FF.
Focal Range
Tokina 16-28mm f2.8 Pro FX has a focal range of 16-28mm and 1.8X zoom ratio.
Zoom Method
Rotary (internal)
Aperture
Tokina 16-28mm f2.8 Pro FX has a constant max aperture of f2.8 from 16mm all the way to the 28mm .