The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70-200 F2.8 DG OS HSM S and the Canon EF 70-200 f2.8L IS USM for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Sigma 70-200 F2.8 DG OS HSM S is the longer of the two lenses at 203mm. The Canon EF 70-200 f2.8L IS USM with a length of 197mm is 6mm shorter. Besides being longer, the Sigma 70-200 F2.8 DG OS HSM S also has a larger diameter of 94mm compared to Canon EF 70-200 f2.8L IS USM's 86mm diameter.
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.
Below you can find the dimension and weight table of the 'Telephoto Zoom Lenses in Canon EF Mount for size comparison purposes.
Telephoto Zoom Lenses in Canon EF Mount for Size Comparison
Both Sigma 70-200 F2.8 DG OS HSM S and Canon EF 70-200 f2.8L IS USM has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Sigma 70-200 F2.8 DG OS HSM S is also available in Nikon F (FX) and Sigma SA mounts.
Both lenses have the same focal range of 70-200mm and the fastest aperture of F2.8.