The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24-70 F2.8 DG DN Art and the Sony FE 24-70mm F2.8 GM for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Sony FE 24-70mm F2.8 GM is the longer of the two lenses at 136mm. The Sigma 24-70 F2.8 DG DN Art with a length of 123mm, is 13mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 88mm.
Below you can find a scaled side-by-side image of Sigma 24-70 F2.8 DG DN Art and Sony FE 24-70mm F2.8 GM to get a better idea of how their sizes compare in real life.
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Sigma 24-70 F2.8 DG DN Art weighs 835g, which means it is 51g (5%) lighter than the Sony FE 24-70mm F2.8 GM which has a weight of 886g.
Below you can find the dimension and weight table of the Standard Zoom Lenses in Sony E Mount for size comparison purposes.
Standard Zoom Lenses in Sony E Mount for Size Comparison
Both the Sigma 24-70 F2.8 DG DN Art and the Sony FE 24-70mm 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-E1, Sony A7R V and Sony FX30.
Sigma 24-70 F2.8 DG DN Art is also available in Leica L mount.
Both lenses have the same focal range of 24-70mm and the fastest aperture of F2.8.