Compatibility Check: Is Canon EOS RP and Canon EF 100-400mm F4.5-5.6 L IS USM compatible?

Below you will find your chosen camera and lens with a short product summary. Further down you will see details around their compatibility, if they are compatible or not.

Can you combine these two?

Last updated: March 2025

This is the short answer:

The camera and lens you have chosen can be used together if you use the desired adapter.

You must use an EOS R adapter

This Canon lens is not part of the Canon EOS R-system but it can still be used with Canon EOS R cameras. To use this lens on this camera you need an adapter.

Canon Lens Mount Adapter EF-EOS R

Focal Length

The Canon camera has a sensor of type Full frame which means that your experienced Focal length will be the same as the lens specification tells us.

This lens has focal length:
100-400 mm

Since Canon EOS RP has a Full Frame sensor this is also the focal length you will experience.

Total weight

When you are looking at a combination of a camera and a lens you must always consider the total weight. Each product weighs in at:

Canon EOS RP
485 gram

Canon EF 100-400mm F4.5-5.6 L IS USM
1380 gram

Together they have a total weight of 1865 gram (equal to 4.11 lb).

Please note that Canon EF 100-400mm F4.5-5.6 L IS USM has a tripod mount which is great.

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Validation Status: Valid
Valid Camera: Yes
Valid Lens: Yes
Compatible: 2
Compatibility Check ID: 1500

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