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 Canon RF 70-200mm F2.8L IS USM 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. Tamron 70-180mm F2.8 Di G2 is the longer of the two lenses at 157mm. The Canon RF 70-200mm F2.8L IS USM with a length of 146mm, is 11mm shorter. On the other hand, the Canon RF 70-200mm F2.8L IS USM has a larger diameter of 90mm 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 Canon RF 70-200mm F2.8L IS USM 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 Canon RF 70-200mm F2.8L IS USM 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 215g (20%) lighter than the Canon RF 70-200mm F2.8L IS USM which has a weight of 1070g.
Filter Threads
The Tamron 70-180mm F2.8 Di G2 has a filter size of 67mm whereas the Canon RF 70-200mm F2.8L IS USM 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 Canon RF 70-200mm F2.8L IS USM:
Lens Mounts
The Tamron 70-180mm F2.8 Di G2 has the Sony E lens mount whereas the Canon RF 70-200mm F2.8L IS USM has the Canon RF 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 Canon R6 V , Canon R6 III and Canon C50 for the Canon RF 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 Canon RF 70-200mm F2.8L IS USM has a focal range of 70-200mm and 2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 112 - 320mm .