The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 70-200 F4L IS USM and the Tamron 70-200mm f2.8 VC USD 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 70-200mm f2.8 VC USD is the longer of the two lenses at 197mm. The Canon RF 70-200 F4L IS USM with a length of 119mm, is 78mm shorter. Besides being longer, the Tamron 70-200mm f2.8 VC USD also has a larger diameter of 86mm compared to the Canon RF 70-200 F4L IS USM's 84mm 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. Canon RF 70-200 F4L IS USM weighs 695g, which means it is 775g (52%) lighter than the Tamron 70-200mm f2.8 VC USD which has a weight of 1470g.
Filter Threads
Both the Canon RF 70-200 F4L IS USM and the Tamron 70-200mm f2.8 VC USD have the same Filter thread size of 77mm.
Below are links to the 77mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Canon RF 70-200 F4L IS USM has the Canon RF lens mount whereas the Tamron 70-200mm f2.8 VC USD has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Canon R6 V, Canon R6 III and Canon C50 for the Canon RF Mount and Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Tamron 70-200mm f2.8 VC USD is also available in Nikon F (FX) and Sony Alpha mounts.
Focal Range
Both lenses have the same focal range of
70-200mm but while Canon RF 70-200 F4L IS USM has the fastest aperture of
F4, the Tamron 70-200mm f2.8 VC USD's widest aperture value is
F2.8.