The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 75-300mm f4.0-5.6 and the Canon RF 100-400mm 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 100-400mm is the longer of the two lenses at 165mm. The Canon RF 75-300mm f4.0-5.6 with a length of 146mm, is 19mm shorter. Besides being longer, the Canon RF 100-400mm also has a larger diameter of 80mm compared to the Canon RF 75-300mm f4.0-5.6's 71mm diameter.
Below you can find a scaled side-by-side image of Canon RF 75-300mm f4.0-5.6 and Canon RF 100-400mm to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 75-300mm f4.0-5.6 and the Canon RF 100-400mm 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 75-300mm f4.0-5.6 weighs 507g, which means it is 128g (20%) lighter than the Canon RF 100-400mm which has a weight of 635g.
Filter Threads
The Canon RF 75-300mm f4.0-5.6 has a filter size of 58mm whereas the Canon RF 100-400mm has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Canon RF 75-300mm f4.0-5.6:
And these are the 67mm filters that we recommend for the Canon RF 100-400mm:
Lens Mounts
Both the Canon RF 75-300mm f4.0-5.6 and the Canon RF 100-400mm 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 75-300mm f4.0-5.6 has a focal range of 75-300mm and
4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
120 - 480mm .
On the other hand, the Canon RF 100-400mm has a focal range of 100-400mm and 4.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 160 - 640mm .
