The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 14mm F1.8 DG HSM and the Tokina 16-28mm f2.8 Pro FX for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Tokina 16-28mm f2.8 Pro FX is the longer of the two lenses at 133mm. The Sigma 14mm F1.8 DG HSM with a length of 126mm, is 7mm shorter. On the other hand, the Sigma 14mm F1.8 DG HSM has a larger diameter of 95mm compared to the Tokina 16-28mm f2.8 Pro FX's 90mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Tokina 16-28mm f2.8 Pro FX weighs 950g, 18% (220g) lighter than the Sigma 14mm F1.8 DG HSM's weight of 1170g.
Lens Mounts
Both the Sigma 14mm F1.8 DG HSM and the Tokina 16-28mm f2.8 Pro FX has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Sigma 14mm F1.8 DG HSM is also available in the Sigma SA and Canon EF mounts.
Tokina 16-28mm f2.8 Pro FX is also available in Canon EF mount.
Focal Range
Sigma 14mm F1.8 DG HSM is a prime lens with fixed focal lenght of 14mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
21mm.
On the other hand, the 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 1.5x crop, it provides a 35mm (FF) equivalent of 24 - 42mm.