It’s possible that an RF tele with a RF/EF [adapter/]converter will out perform an RF/EF [adapter] with and EF tele. Don’t know why but I suppose there could be a reason.
it will also make it easier to stack Tele’ s and allow teleconverters on a couple EF lenses that can’t accept them now.
The notion of three bayonet joints between a $12,000 lens and a $3500 body makes me cringe.
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