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.
Lenses in Canon EF Mount with Same Focal and Aperture Range
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. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides an 35mm (FF) equivalent of 25.6 - 44.8mm.
Optical Image Stabilization
Tokina 16-28mm f2.8 Pro FX doesn't have an optical image stabilization system so the only option to stabilize the image taken with this lens is to mount on a camera body with IBIS (sensor based In-body image stabilization).
Zoom Method
Tokina 16-28mm f2.8 Pro FX features
Rotary (internal) zoom method where the length of the lens doesn't change while you are zooming in or out. Even though this design has a size disadvantage in general compare to extending designs, it has the benefits of better sealing against dust and moisture, no zoom creep and no weight balance shift while zooming.
Maximum Magnification Ratio
Tokina 16-28mm f2.8 Pro FX has a Max Magnification Ratio of
0.19x and has a minimum focusing distance of
0.28m.
Aperture
Tokina 16-28mm f2.8 Pro FX is a fixed aperture lens with a constant max aperture of f2.8 from 16mm all the way to the 28mm .
Optical Formula
Tokina 16-28mm f2.8 Pro FX's optical formula consists of 15 elements in 13 groups.