The full frame nature doesn't negate the possibility of Cinema lenses. The R5 shoots full frame video, Sigma makes a FF set of Cine lenses, and all Zeiss cinema lenses are full frame.Unlikely -see the specs in the patent. They are all full frame.
However I did note that several have quite a large back focus. RF lenses don't have to have a short distance.
You're likely correct that these aren't Cine lenses but, with the announcement that Canon is releasing a RF-mount video camera, it seems Cine lenses should be coming.
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