The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 150-600mm F5-6.3 DG OS HSM S and the Tamron 70-200mm f2.8 LD 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 150-600mm F5-6.3 DG OS HSM S is the longer of the two lenses at 290mm. The Tamron 70-200mm f2.8 LD with a length of 194mm is 96mm shorter. Besides being longer, the Sigma 150-600mm F5-6.3 DG OS HSM S also has a larger diameter of 121mm compared to Tamron 70-200mm f2.8 LD's 90mm 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. Tamron 70-200mm f2.8 LD weighs 1330g, 53% (1530g) lighter than the Sigma 150-600mm F5-6.3 DG OS HSM S's weight of 2860g.
Below you can find the dimension and weight table of the 'Telephoto Zoom Lenses in Nikon F (FX) Mount for size comparison purposes.
Telephoto Zoom Lenses in Nikon F (FX) Mount for Size Comparison
Lens Mounts
Both Sigma 150-600mm F5-6.3 DG OS HSM S and Tamron 70-200mm f2.8 LD has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Sigma 150-600mm F5-6.3 DG OS HSM S is also available in Canon EF and Sigma SA mounts.
Tamron 70-200mm f2.8 LD is also available in Canon EF , Sony Alpha and Pentax KAF mounts.
Focal Range
Sigma 150-600mm F5-6.3 DG OS HSM S has a focal range of 150-600mm and 4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 225 - 900mm.
Tamron 70-200mm f2.8 LD has a focal range of 70-200mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 105 - 300mm.