Canon just launched an entry level camera using the RF Mount! You should probably take a look at some photos it (and Chris Niccolls) captured in Florida.
Canon EOS R10 Review
DPReview TV: Canon EOS R7 and R10 First Impressions Review: Digital Photography Review
We Review the Amazing Canon EOS R10 Mirrorless Camera
Canon EOS R10 Review
Canon EOS R10 Review
Canon EOS R10 Sample Images
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Canon EOS R10 full review - Amateur Photographer
Diana Millos puts the EOS R10 to the test - Canon Europe