Universal lens end cap - Canon

[Overread]

Soo I've learned that EF/EFS and RF lenses don't have the same compatibility for end caps and I've managed to missplace my RF ones somewhere (easily done as the adaptor was just sitting on the camera all the time until I got the 100-500mm).

Do I have to keep a supply of both on hand; or does the EF fit EF/EFS or is there some universal 3rd party end cap that will work and do the job for both.

 

[Andrew Benbow]

I've got a Sigma EF lens and an RF lens end cap seems to fit with no issue.

I've bought these from Amazon https://www.amazon.co.uk/gp/product/B08BJMT9K1/ and they have been fine.

 

[ecoleman]

I’m pretty sure that the front lens caps are compatible but the rear caps are different on the Rf lenses.

 

[Brentor]

I read this:

RF lens mount and camera body caps fit EF models, but the RF bayonet mount tab positions preclude EF camera body and lens mount caps from mounting on R-Series cameras and RF lenses.