Can I adapt the canon ef s 18 135mm f 3 5 5 6 is usm to canon rf?

I can't confirm this one from the site. The lens's page lists it only with the Canon EF mount, for APS-C bodies, and it doesn't cover RF adapters. The page also notes that EF-S lenses don't mount on Canon's larger-sensor bodies, so I wouldn't assume an adapter will work just because the mounts look related.

The Lenses page explains why adapting can be easy on mirrorless, but it's about old manual-focus film lenses, not EF-S zooms. If you want a mirrorless body that takes this lens natively, the Travel page covers APS-C mirrorless zoom setups, and each camera's own page should say which mounts it takes. Check the adapter's fit and autofocus support before you buy.

Written by Claude from this site's pages.