The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 70-180mm F2.8 Di G2 and the Sigma 70-200mm f2.8 Sports 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 Sports is the longer of the two lenses at 205mm. The Tamron 70-180mm F2.8 Di G2 with a length of 157mm, is 48mm shorter. Besides being longer, the Sigma 70-200mm f2.8 Sports also has a larger diameter of 91mm compared to the Tamron 70-180mm F2.8 Di G2's 83mm diameter.
Below you can find a scaled side-by-side image of Tamron 70-180mm F2.8 Di G2 and Sigma 70-200mm f2.8 Sports to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 70-180mm F2.8 Di G2 and the Sigma 70-200mm f2.8 Sports Size and Weight 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 70-180mm F2.8 Di G2 weighs 855g, which means it is 490g (36%) lighter than the Sigma 70-200mm f2.8 Sports which has a weight of 1345g.
Below you can find the dimension and weight table of the Telephoto Zoom Lenses in Sony E Mount for size comparison purposes.
Telephoto Sony E Mount
Filter Threads
The Tamron 70-180mm F2.8 Di G2 has a filter size of 67mm whereas the Sigma 70-200mm f2.8 Sports has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Tamron 70-180mm F2.8 Di G2:
And these are the 77mm filters that we recommend for the Sigma 70-200mm f2.8 Sports:
Lens Mounts
Both the Tamron 70-180mm F2.8 Di G2 and the Sigma 70-200mm f2.8 Sports has the same Sony E lens mount . Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5 , Sony A7R VI and Sony A7 V .
Leica L mount.
Focal Range
Tamron 70-180mm F2.8 Di G2 has a focal range of 70-180mm and
2.6X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
105 - 270mm .
On the other hand, the Sigma 70-200mm f2.8 Sports 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 a 35mm (FF) equivalent of 105 - 300mm .
