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 Sony 70-200mm F2.8 G SSM II 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. Sony 70-200mm F2.8 G SSM II is the longer of the two lenses at 197mm. The Tamron 70-180mm F2.8 Di G2 with a length of 157mm, is 40mm shorter. Besides being longer, the Sony 70-200mm F2.8 G SSM II also has a larger diameter of 87mm 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 Sony 70-200mm F2.8 G SSM II 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 Sony 70-200mm F2.8 G SSM II 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 645g (43%) lighter than the Sony 70-200mm F2.8 G SSM II which has a weight of 1500g.
Filter Threads
The Tamron 70-180mm F2.8 Di G2 has a filter size of 67mm whereas the Sony 70-200mm F2.8 G SSM II 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 Sony 70-200mm F2.8 G SSM II:
Lens Mounts
The Tamron 70-180mm F2.8 Di G2 has the Sony E lens mount whereas the Sony 70-200mm F2.8 G SSM II has the Sony Alpha lens mount . Some of the latest released cameras that are compatible with these mounts are Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount and Sony A99 II , Sony A68 and Sony A77 II for the Sony Alpha Mount.
Tamron 70-180mm F2.8 Di G2 is also available in the Nikon Z 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 Sony 70-200mm F2.8 G SSM II 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 .