Three EF-to-RF adapters available for EOS R

Alongside the new RF lens mount, Canon has announced a trio of EF-to-RF adapters for owners of current Canon DSLR lenses. There's a basic adapter, another with a customizable control wheel to emulate the extra (3rd) knurled ring on the new RF lenses, and a third with support for drop-in filters. Having used the adapter capable of drop-in filters, we can confidently say many users of exotic glass (some without any front filter thread at all, like the EF 11-24 F4L) will be thrilled at the prospect...