The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 12mm f1.4 and the Sony 12-24mm F2.8 GM 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 12mm f1.4 with a length of 69mm, is 68mm shorter. Besides being longer, the Sony 12-24mm F2.8 GM also has a larger diameter of 98mm compared to the Sigma 12mm f1.4's 68mm diameter.
Below you can find a scaled side-by-side image of Sigma 12mm f1.4 and Sony 12-24mm F2.8 GM to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 12mm f1.4 and the Sony 12-24mm F2.8 GM Size and Weight 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 12mm f1.4 weighs 225g, which means it is 622g (73%) lighter than the Sony 12-24mm F2.8 GM which has a weight of 847g.
Lens Mounts
Both the Sigma 12mm f1.4 and the Sony 12-24mm F2.8 GM has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony ZV-E10 II , Sony A6700 and Sony FX30 .
Sigma 12mm f1.4 is also available in the Fujifilm X and Canon RF mounts.
Focal Range
Sigma 12mm f1.4 is a prime lens with fixed focal lenght of 12mm which has an effective (full-frame 35mm equivalent) focal range of
18mm when used on a APS-C / DX format camera.
On the other hand, the Sony 12-24mm F2.8 GM has a focal range of 12-24mm and 2.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 18 - 36mm .