The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony 12-24mm F2.8 GM and the Sigma 12-24mm F4.5-5.6 II 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. Sony 12-24mm F2.8 GM is the longer of the two lenses at 137mm. The Sigma 12-24mm F4.5-5.6 II DG HSM with a length of 120mm, is 17mm shorter. Besides being longer, the Sony 12-24mm F2.8 GM also has a larger diameter of 98mm compared to the Sigma 12-24mm F4.5-5.6 II DG HSM's 87mm 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 12-24mm F4.5-5.6 II DG HSM weighs 670g, 20% (177g) lighter than the Sony 12-24mm F2.8 GM's weight of 847g.
Lens Mounts
The Sony 12-24mm F2.8 GM has the Sony E lens mount whereas the Sigma 12-24mm F4.5-5.6 II DG HSM has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Sigma 12-24mm F4.5-5.6 II DG HSM is also available in Sigma SA and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of
12-24mm but while Sony 12-24mm F2.8 GM has the fastest aperture of
F2.8, the Sigma 12-24mm F4.5-5.6 II DG HSM's widest aperture value is
F4.5 - F5.6.
