The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony 70-200mm F2.8 G and the Sigma 70-200mm F2.8 EX DG HSM II for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Sony 70-200mm F2.8 G is the longer of the two lenses at 197mm. The Sigma 70-200mm F2.8 EX DG HSM II with a length of 184mm is 13mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 87mm.
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 70-200mm F2.8 EX DG HSM II weighs 1390g, 7% (110g) lighter than the Sony 70-200mm F2.8 G's weight of 1500g.
Below you can find the dimension and weight table of the 'Telephoto Zoom Lenses in Sony Alpha Mount for size comparison purposes.
Telephoto Zoom Lenses in Sony Alpha Mount for Size Comparison
Lens Mounts
Both Sony 70-200mm F2.8 G and Sigma 70-200mm F2.8 EX DG HSM II has the same Sony Alpha lens mount. Some of the latest released cameras that are compatible with the Sony Alpha lenses are Sony A99 II, Sony A68 and Sony A77 II.
Sigma 70-200mm F2.8 EX DG HSM II is also available in Canon EF , Four Thirds, Pentax KAF3, Sigma SA and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of 70-200mm and the fastest aperture of F2.8.