Most photographers have no idea what the new patents are, so it is not a case of Canon using them to keep people around. Canon gets patents to protect new designs from being encroached.I guess the spraying of patents for EOS R mount could be a way to deter photogs from staying put with the EOS EF one. Understandably since the EOS R don't seem to be such an atractive camera compared to the the similar priced 5D4... Good luck with the Rs, RX or whatever though...
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