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 50-100mm F1.8 A 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 50-100mm F1.8 A is the longer of the two lenses at 171mm. The Sigma 14-24mm F2.8 DG HSM with a length of 135mm, is 36mm shorter. On the other hand, the Sigma 14-24mm F2.8 DG HSM has a larger diameter of 96mm compared to the Sigma 50-100mm F1.8 A's 94mm 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 340g (22%) lighter than the Sigma 50-100mm F1.8 A which has a weight of 1490g.
Lens Mounts
Both the Sigma 14-24mm F2.8 DG HSM and the Sigma 50-100mm F1.8 A has the same Sigma SA lens mount. Some of the latest released cameras that are compatible with the Sigma SA lenses are Sigma SD1 Merrill, Sigma SD1 and .
Sigma 14-24mm F2.8 DG HSM is also available in Canon EF and Nikon F (FX) mounts.
Sigma 50-100mm F1.8 A is also available in Canon EF and Nikon F (DX) 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 50-100mm F1.8 A has a focal range of 50-100mm and 2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 75-150mm when used on a APS-C / DX format camera.