The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 70-200mm F2.8 GM and the Sigma 70-200mm F2.8 EX DG OS 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 FE 70-200mm F2.8 GM is the longer of the two lenses at 200mm. The Sigma 70-200mm F2.8 EX DG OS HSM with a length of 197mm, is 3mm shorter. Besides being longer, the Sony FE 70-200mm F2.8 GM also has a larger diameter of 88mm compared to the Sigma 70-200mm F2.8 EX DG OS HSM's 86mm 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 70-200mm F2.8 EX DG OS HSM weighs 1430g, 3% (50g) lighter than the Sony FE 70-200mm F2.8 GM's weight of 1480g.
Filter Threads
Both the Sony FE 70-200mm F2.8 GM and the Sigma 70-200mm F2.8 EX DG OS HSM have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sony FE 70-200mm F2.8 GM has the Sony E lens mount whereas the Sigma 70-200mm F2.8 EX DG OS HSM has the Sony Alpha 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 Sony A99 II, Sony A68 and Sony A77 II for the Sony Alpha Mount.
Sigma 70-200mm F2.8 EX DG OS HSM is also available in Canon EF , Nikon F (FX), Pentax KAF3 and Sigma SA mounts.
Focal Range
Both lenses have the same focal range of
70-200mm and the fastest aperture of
F2.8.