The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 100-400mm F5-6.3 OS 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 Sigma 100-400mm F5-6.3 OS with a length of 197mm, is 11mm shorter. Besides being longer, the Canon RF 100-500mm also has a larger diameter of 94mm compared to the Sigma 100-400mm F5-6.3 OS's 86mm diameter.
Below you can find a scaled side-by-side image of Sigma 100-400mm F5-6.3 OS and Canon RF 100-500mm to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 100-400mm F5-6.3 OS 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. Sigma 100-400mm F5-6.3 OS weighs 1135g, which means it is 230g (16%) lighter than the Canon RF 100-500mm which has a weight of 1365g.
Filter Threads
The Sigma 100-400mm F5-6.3 OS 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 Sigma 100-400mm F5-6.3 OS:
And these are the 77mm filters that we recommend for the Canon RF 100-500mm:
Lens Mounts
The Sigma 100-400mm F5-6.3 OS has the Leica L lens mount whereas the Canon RF 100-500mm has the Canon RF lens mount . Some of the latest released cameras that are compatible with these mounts are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Canon R6 V , Canon R6 III and Canon C50 for the Canon RF Mount.
Sony E and Fujifilm X mounts.
Focal Range
Sigma 100-400mm F5-6.3 OS has a focal range of 100-400mm and
4.0X zoom ratio .
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 .
