The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 100-300mm f2.8 and the Canon RF 800mm F5.6L 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 800mm F5.6L is the longer of the two lenses at 432mm. The Canon RF 100-300mm f2.8 with a length of 323mm, is 109mm shorter. Besides being longer, the Canon RF 800mm F5.6L also has a larger diameter of 163mm compared to the Canon RF 100-300mm f2.8's 128mm diameter.
Below you can find a scaled side-by-side image of Canon RF 100-300mm f2.8 and Canon RF 800mm F5.6L to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 100-300mm f2.8 and the Canon RF 800mm F5.6L 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. Canon RF 100-300mm f2.8 weighs 2590g, which means it is 550g (17%) lighter than the Canon RF 800mm F5.6L which has a weight of 3140g.
Filter Threads
The Canon RF 100-300mm f2.8 has a filter size of 112mm whereas the Canon RF 800mm F5.6L has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 112mm filters that we recommend you to consider for the Canon RF 100-300mm f2.8:
And these are the 52mm filters that we recommend for the Canon RF 800mm F5.6L:
Lens Mounts
Both the Canon RF 100-300mm f2.8 and the Canon RF 800mm F5.6L has the same Canon RF lens mount . Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R6 V , Canon R6 III and Canon C50 .
Focal Range
Canon RF 100-300mm f2.8 has a focal range of 100-300mm and
3.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
160 - 480mm .
On the other hand, the Canon RF 800mm F5.6L is a prime lens with fixed focal lenght of 800mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 1280mm .
