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R5 and R shutting down when zooming adapted 24-70 2.8L II

Started Sep 27, 2021 | Questions thread
GammyKnee Contributing Member • Posts: 985
Re: R5 and R shutting down when zooming adapted 24-70 2.8L II

Well, I can confirm that's not normal behavior for the R / R6 + 24-70 2.8L II with the standard, no frills Canon adapter, but I don't think that's news to you!

You say the lens seems fine on your 5D4, but just for completeness have you tried testing it in liveview? Other than that, I would definitely try cleaning the lens contacts to see if that helps at all.

I take it you have other EF mount lenses and they all work fine on your R bodies via the adapters?

 GammyKnee's gear list:GammyKnee's gear list
Canon EOS R Canon EOS R6 Canon EF 85mm F1.8 USM Canon EF 135mm F2L USM Canon EF 17-40mm f/4.0L USM +4 more
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