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 EX DG HSM and the Tamron 24-70mm F2.8 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. Tamron 24-70mm F2.8 Di VC USD G2 is the longer of the two lenses at 111mm. The Sigma 24-70mm F2.8 EX DG HSM with a length of 95mm, is 16mm shorter. On the other hand, the Sigma 24-70mm F2.8 EX DG HSM has a larger diameter of 89mm compared to the Tamron 24-70mm F2.8 Di VC USD G2's 88mm 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 24-70mm F2.8 EX DG HSM weighs 790g, which means it is 115g (12%) lighter than the Tamron 24-70mm F2.8 Di VC USD G2 which has a weight of 905g.
Below you can find the dimension and weight table of the Standard Zoom Lenses in Canon EF Mount for size comparison purposes.
Standard Lenses in Canon EF Mount for Size Comparison
Filter Threads
Both the Sigma 24-70mm F2.8 EX DG HSM and the Tamron 24-70mm F2.8 Di VC USD G2 have the same Filter thread size of 82mm.
Below are links to the 82mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Sigma 24-70mm F2.8 EX DG HSM and the Tamron 24-70mm F2.8 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 24-70mm F2.8 EX DG HSM is also available in Pentax KAF3 , Sony Alpha, Sigma SA and Nikon F (FX) mounts.
Tamron 24-70mm F2.8 Di VC USD G2 is also available in Nikon F (FX) mount.
Focal Range
Both lenses have the same focal range of
24-70mm and the fastest aperture of
F2.8.