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

Started Sep 27, 2021 | Questions thread
OP grock New Member • Posts: 4
Re: R5 and R shutting down when zooming adapted 24-70 2.8L II

GammyKnee wrote:

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?

Yeah, it definitely seems like it's just that lens. Cleaned the contacts on everything, didn't seem to help. Emailed Canon support and they basically said I did everything they would've recommended and I should just send it in for repair. Bummer. Never encountered anything like this before.

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