The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 24-50mm F2.8 G and the Sigma 28-70mm F2.8 DG DN C 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 28-70mm F2.8 DG DN C is the longer of the two lenses at 102mm. The Sony FE 24-50mm F2.8 G with a length of 92mm, is 10mm shorter. On the other hand, the Sony FE 24-50mm F2.8 G has a larger diameter of 75mm compared to the Sigma 28-70mm F2.8 DG DN C's 72mm diameter.
Below you can find a scaled side-by-side image of Sony FE 24-50mm F2.8 G and Sigma 28-70mm F2.8 DG DN C to get a better idea of how their sizes compare in real life.
Comparison image of the Sony FE 24-50mm F2.8 G and the Sigma 28-70mm F2.8 DG DN C 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. Sony FE 24-50mm F2.8 G weighs 440g, which means it is 30g (6%) lighter than the Sigma 28-70mm F2.8 DG DN C which has a weight of 470g.
Filter Threads
Both the Sony FE 24-50mm F2.8 G and the Sigma 28-70mm F2.8 DG DN C have the same Filter thread size of 67mm .
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sony FE 24-50mm F2.8 G has the Sony E lens mount whereas the Sigma 28-70mm F2.8 DG DN C has the Leica L 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 Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount.
Focal Range
Sony FE 24-50mm F2.8 G has a focal range of 24-50mm and
2.1X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36 - 75mm .
On the other hand, the Sigma 28-70mm F2.8 DG DN C has a focal range of 28-70mm and 2.5X zoom ratio .
