The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24-70mm F2.8 II and the Sony FE 24-105mm F4 G OSS 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 24-70mm F2.8 II is the longer of the two lenses at 120mm. The Sony FE 24-105mm F4 G OSS with a length of 113mm, is 7mm shorter. Besides being longer, the Sigma 24-70mm F2.8 II also has a larger diameter of 88mm compared to the Sony FE 24-105mm F4 G OSS's 83mm diameter.
Below you can find a scaled side-by-side image of Sigma 24-70mm F2.8 II and Sony FE 24-105mm F4 G OSS to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 24-70mm F2.8 II and the Sony FE 24-105mm F4 G OSS 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 24-105mm F4 G OSS weighs 663g, 11% (82g) lighter than the Sigma 24-70mm F2.8 II's weight of 745g.
Filter Threads
The Sigma 24-70mm F2.8 II has a filter size of 82mm whereas the Sony FE 24-105mm F4 G OSS has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Sigma 24-70mm F2.8 II:
And these are the 77mm filters that we recommend for the Sony FE 24-105mm F4 G OSS:
Lens Mounts
The Sigma 24-70mm F2.8 II has the Leica L lens mount whereas the Sony FE 24-105mm F4 G OSS has the Sony E lens mount . Some of the latest released cameras that are compatible with these mounts are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount.
Sigma 24-70mm F2.8 II is also available in the Sony E mount.
Focal Range
Sigma 24-70mm F2.8 II has a focal range of 24-70mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
36 - 105mm .
On the other hand, the Sony FE 24-105mm F4 G OSS has a focal range of 24-105mm and 4.4X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 36 - 157.5mm .