The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 100-400mm F5-6.3 DG OS HSM and the Tamron 16-300mm f3.5-6.3 II VC PZD 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 100-400mm F5-6.3 DG OS HSM is the longer of the two lenses at 182mm. The Tamron 16-300mm f3.5-6.3 II VC PZD with a length of 100mm, is 82mm shorter. Besides being longer, the Sigma 100-400mm F5-6.3 DG OS HSM also has a larger diameter of 86mm compared to the Tamron 16-300mm f3.5-6.3 II VC PZD's 75mm 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. Tamron 16-300mm f3.5-6.3 II VC PZD weighs 540g, 53% (620g) lighter than the Sigma 100-400mm F5-6.3 DG OS HSM's weight of 1160g.
Filter Threads
Both the Sigma 100-400mm F5-6.3 DG OS HSM and the Tamron 16-300mm f3.5-6.3 II VC PZD have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sigma 100-400mm F5-6.3 DG OS HSM has the Nikon F (FX) lens mount whereas the Tamron 16-300mm f3.5-6.3 II VC PZD has the Nikon F (DX) 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 Nikon D3500, Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount.
Sigma 100-400mm F5-6.3 DG OS HSM is also available in the Sigma SA and Canon EF mounts.
Tamron 16-300mm f3.5-6.3 II VC PZD is also available in Canon EF and Sony Alpha mounts.
Focal Range
Sigma 100-400mm F5-6.3 DG OS HSM has a focal range of 100-400mm and
4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
150 - 600mm.
On the other hand, the Tamron 16-300mm f3.5-6.3 II VC PZD has a focal range of 16-300mm and 18.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 24-450mm when used on a APS-C / DX format camera.
