The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 14-24mm F2.8 DG HSM and the Sigma 14mm F1.8 DG HSM 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. Sigma 14-24mm F2.8 DG HSM is the longer of the two lenses at 135mm. The Sigma 14mm F1.8 DG HSM with a length of 126mm, is 9mm shorter. Besides being longer, the Sigma 14-24mm F2.8 DG HSM also has a larger diameter of 96mm compared to the Sigma 14mm F1.8 DG HSM's 95mm 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. Sigma 14-24mm F2.8 DG HSM weighs 1150g, which means it is 20g (1%) lighter than the Sigma 14mm F1.8 DG HSM which has a weight of 1170g.
Lens Mounts
The Sigma 14-24mm F2.8 DG HSM has the Sigma SA lens mount whereas the Sigma 14mm F1.8 DG HSM has the Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with these mounts are Sigma SD1 Merrill, Sigma SD1 and for the Sigma SA Mount and Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Sigma 14-24mm F2.8 DG HSM is also available in the Canon EF and Nikon F (FX) mounts.
Sigma 14mm F1.8 DG HSM is also available in Sigma SA and Canon EF mounts.
Focal Range
Sigma 14-24mm F2.8 DG HSM has a focal range of 14-24mm and
1.7X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
21-36mm when used on a 35mm FF format camera.
On the other hand, the 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.
