The advent of the mirrorless Canon EOS R system is hardly news, with the first camera and lenses dating back to late 2018. But since then, Canon has played its cards very close to its chest, to the extent that the only independently manufactured lenses have been fully manual affairs with no autofocus nor any in-lens electronics for communicating with camera bodies. That all became set to change in April, with the announcement that Sigma would be retooling six of its APS-C format Sigma prime and zoom lenses for other makes of mirrorless cameras, and developing RF mount versions. Tamron also got the green light, and set about repurposing its 11-20mm f/2.8 Di III-A RXD for APS-C EOS R system cameras. It seems that full-frame Canon shooters will have to wait longer.
