The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70-200mm F2.8 EX DG OS HSM and the Tamron SP 70-200mm 2.8 Di VC USD G2 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 70-200mm F2.8 EX DG OS HSM is the longer of the two lenses at 197mm. The Tamron SP 70-200mm 2.8 Di VC USD G2 with a length of 194mm, is 3mm shorter. On the other hand, the Tamron SP 70-200mm 2.8 Di VC USD G2 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, which means it is 70g (4%) lighter than the Tamron SP 70-200mm 2.8 Di VC USD G2 which has a weight of 1500g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Canon EF Mount for size comparison purposes.
Telephoto Lenses in Canon EF Mount for Size Comparison
Filter Threads
Both the Sigma 70-200mm F2.8 EX DG OS HSM and the Tamron SP 70-200mm 2.8 Di VC USD G2 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
Both the Sigma 70-200mm F2.8 EX DG OS HSM and the Tamron SP 70-200mm 2.8 Di VC USD G2 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 70-200mm F2.8 EX DG OS HSM is also available in Nikon F (FX) , Pentax KAF3, Sony Alpha and Sigma SA mounts.
Tamron SP 70-200mm 2.8 Di VC USD G2 is also available in Nikon F (FX) mount.
Focal Range
Both lenses have the same focal range of
70-200mm and the fastest aperture of
F2.8.