The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 100-400mm and the Tamron 100-400mm F4.5-6.3 Di 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 100-400mm F4.5-6.3 Di VC USD is the longer of the two lenses at 199mm. The Canon RF 100-400mm with a length of 165mm, is 34mm shorter. Besides being longer, the Tamron 100-400mm F4.5-6.3 Di VC USD also has a larger diameter of 86mm compared to the Canon RF 100-400mm's 80mm 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 100-400mm weighs 635g, which means it is 500g (44%) lighter than the Tamron 100-400mm F4.5-6.3 Di VC USD which has a weight of 1135g.
Filter Threads
Both the Canon RF 100-400mm and the Tamron 100-400mm F4.5-6.3 Di VC USD 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 Canon RF 100-400mm has the Canon RF lens mount whereas the Tamron 100-400mm F4.5-6.3 Di 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 100-400mm F4.5-6.3 Di VC USD is also available in Nikon F (FX) mount.
Focal Range
Both lenses have the same focal range of
100-400mm but while Canon RF 100-400mm has the fastest aperture of
F5.6-8, the Tamron 100-400mm F4.5-6.3 Di VC USD's widest aperture value is
F4.5-6.3.
