The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 70-200mm f2.8 VC USD and the Sigma 70-200mm F2.8 EX DG HSM II for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Tamron 70-200mm f2.8 VC USD 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, the Sigma 70-200mm F2.8 EX DG HSM II has a larger diameter of 87mm compared to the Tamron 70-200mm f2.8 VC USD's 86mm diameter.
The 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, 5% (80g) lighter than the Tamron 70-200mm f2.8 VC USD's weight of 1470g.
Lens Mounts
The Tamron 70-200mm f2.8 VC USD has the Nikon F (FX) lens mount whereas the Sigma 70-200mm F2.8 EX DG HSM II has the Sigma SA lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon D6, Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and Sigma Quattro, Sigma Quattro H and Sigma SD1 Merrill for the Sigma SA Mount.
Tamron 70-200mm f2.8 VC USD is also available in Canon EF and Sony Alpha mounts.
Sigma 70-200mm F2.8 EX DG HSM II is also available in Canon EF , Four Thirds, Pentax KAF3, Sony Alpha and Nikon F (FX) mounts.
Focal Range
Both lenses have the same focal range of 70-200mm and the fastest aperture of F2.8.