The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 100-500mm F4.5-7.1L and the Sigma 60-600mm F4.5-6.3 DG OS HSM S 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. Sigma 60-600mm F4.5-6.3 DG OS HSM S is the longer of the two lenses at 269mm. The Canon RF 100-500mm F4.5-7.1L with a length of 208mm, is 61mm shorter. Besides being longer, the Sigma 60-600mm F4.5-6.3 DG OS HSM S also has a larger diameter of 120mm compared to the Canon RF 100-500mm F4.5-7.1L's 94mm 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 100-500mm F4.5-7.1L weighs 1365g, which means it is 1335g (49%) lighter than the Sigma 60-600mm F4.5-6.3 DG OS HSM S which has a weight of 2700g.
Filter Threads
The Canon RF 100-500mm F4.5-7.1L has a filter size of 77mm whereas the Sigma 60-600mm F4.5-6.3 DG OS HSM S has a 105mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Canon RF 100-500mm F4.5-7.1L:
And these are the 105mm filters that we recommend for the Sigma 60-600mm F4.5-6.3 DG OS HSM S:
Lens Mounts
The Canon RF 100-500mm F4.5-7.1L has the Canon RF lens mount whereas the Sigma 60-600mm F4.5-6.3 DG OS HSM S has the Canon EF lens mount. Some of the latest released cameras that are compatible with these mounts are Canon R100, Canon R8 and Canon R50 for the Canon RF Mount and Canon 1D X III, Canon 6D MII and Canon 5D MIV for the Canon EF Mount.
Sigma 60-600mm F4.5-6.3 DG OS HSM S is also available in Nikon F (FX) and Sigma SA mounts.
Focal Range
Canon RF 100-500mm F4.5-7.1L 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.
On the other hand, the Sigma 60-600mm F4.5-6.3 DG OS HSM S has a focal range of 60-600mm and 10.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 96 - 960mm.