The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 18-300mm F3.5-6.3 and the Canon RF 100-500mm 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. Canon RF 100-500mm is the longer of the two lenses at 208mm. The Tamron 18-300mm F3.5-6.3 with a length of 126mm, is 82mm shorter. Besides being longer, the Canon RF 100-500mm also has a larger diameter of 94mm compared to the Tamron 18-300mm F3.5-6.3's 76mm diameter.
Below you can find a scaled side-by-side image of Tamron 18-300mm F3.5-6.3 and Canon RF 100-500mm to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 18-300mm F3.5-6.3 and the Canon RF 100-500mm 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 18-300mm F3.5-6.3 weighs 620g, which means it is 745g (54%) lighter than the Canon RF 100-500mm which has a weight of 1365g.
Filter Threads
The Tamron 18-300mm F3.5-6.3 has a filter size of 67mm whereas the Canon RF 100-500mm 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 18-300mm F3.5-6.3:
And these are the 77mm filters that we recommend for the Canon RF 100-500mm:
Lens Mounts
Both the Tamron 18-300mm F3.5-6.3 and the Canon RF 100-500mm has the same Canon RF lens mount . Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R50 V , Canon R100 and Canon R50 .
Tamron 18-300mm F3.5-6.3 is also available in the Nikon Z mount.
Focal Range
Tamron 18-300mm F3.5-6.3 has a focal range of 18-300mm and
16.7X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
28.8-480mm when used on a APS-C / DX format camera.
On the other hand, the Canon RF 100-500mm has a focal range of 100-500mm and 5.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 160 - 800mm .