One of Japan’s largest newspapers has published a report that contains two very interesting tidbits for Canon mirrorless shooters. First, they claim that Canon will release a 1D X-level EOS R in 2021; and second, the report revealed that Canon is working on some sort of ‘converter’ that can turn a mirrorless camera into a DSLR. The report was published in Nikkan Kogyo Shimbun, and it seems to confirm rumors that Canon is preparing a high-end EOS R camera that…