The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 105mm F1.4 DG HSM and the Sigma 14-24mm F2.8 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 105mm F1.4 DG HSM with a length of 132mm, is 3mm shorter. On the other hand, the Sigma 105mm F1.4 DG HSM has a larger diameter of 116mm compared to the Sigma 14-24mm F2.8 DG HSM's 96mm 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, 30% (495g) lighter than the Sigma 105mm F1.4 DG HSM's weight of 1645g.
Lens Mounts
Both the Sigma 105mm F1.4 DG HSM and the Sigma 14-24mm F2.8 DG HSM has the same Sigma SA lens mount. Some of the latest released cameras that are compatible with the Sigma SA lenses are Sigma Quattro, Sigma Quattro H and Sigma SD1 Merrill.
Sigma 105mm F1.4 DG HSM is also available in Canon EF , Nikon F (FX) and Sony E mounts.
Sigma 14-24mm F2.8 DG HSM is also available in Canon EF and Nikon F (FX) mounts.
Focal Range
Sigma 105mm F1.4 DG HSM is a prime lens with fixed focal lenght of 105mm.
On the other hand, the 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.