Do you buy new EF lenses?

Started 2 weeks ago | Discussions thread
Peter Kwok
Peter Kwok Senior Member • Posts: 2,523
Only 3rd party EF mount

It is unlikely that a 3rd party maker like Sigma, Tamron, etc. will reverse engineer the extra 2 pins of the RF mount.  Their RF mount lens will be the equivalent of their EF mount lens with an mount adaptor permanently attached.

Buying their EF mount lens gives me the option of using a Canon RF-EF control ring adaptor.

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Peter Kwok
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