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Related Questions and Answers

Q: 1. Why does this say it's specifically built for EOS R camera systems, while being listed as compatible with the Red Komodo? Will the standard version have electronic control and metadata when used with the Komodo?

A: Yes. The following unit does adapt providing all on-board commination to the camera.

Q: 2. Will this work with a Sony fs5 and canon lens I have 70-200 lens

A: Canon Mount Adapter EF-EOS R BH #CAMAEFRF is for Canon EF/EF-S Lens to EOS R Camera so this wouldn't work with the Sony PXW-FS5 XDCAM Super 35 Camera System BH #SOPXWFS5.

Q: 3. Pricing on Canon's website for this is only $99. Is this a pricing glitch?

A: Yes

Q: 4. Would this be a good choice to use on a Sigma 18-33 lens or my canon EF-S lenses on a Canon R7?

A: Yes, a Sigma 18-35mm f/1.8 Lens with a Canon EF mount can be adapted with the Canon EF-EOSR R adapter to the EOS R7. You can also use this with EF-S lenses.

Q: 5. This adapter is compatible with Canon EF lens, what about USM macro lenses?

A: EF/EF-S and USM are part of the same "system" but mean completely different things. EF/EF-S pertains to the mount (which is principally the requirement for the lens to work with this adapter), while the other pertains the type of autofocus motor (and has nothing to do with mounting the lens to a camera). To answer the question though, all of the EF/EF-S macro lenses with USM work with this adapter.

Q: 6. Does the adapter EF-EOS R work on R7?

A: Yes Canon Mount Adapter EF-EOS R is compatible with the Canon R7

Q: 7. Will this work with third party EF mount screw drive lenses?

A: EF mount is always electronic, I never saw a screw drive EF mount, but if there is one out there, the autofocus wouldn't work. Canon Mount Adapter EF-EOS R only works with electronic autofocus.

Q: 8. Probably a dumb question, but would this allow the use of R mount lenses with my 6D as well as my EF lenses on an R mount, or is that a separate adapter?

A: No. The following adapter will allow Canon EF/EF-S Lens to EOS R Camera body only.

Q: 9. Will this work to adapt the new Canon RF 200-800 lens to my Canon 90D?

A: No, the Canon Mount Adapter EF-EOS R mounts EF lenses to R bodies.

Q: 10. Will it work with a EF 90d?

A: No, the Canon Mount Adapter EF-EOS R is for R series cameras. Not EF/EF-S cameras.