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EF 28-70 L Error: "Communication with the device is faulty"

Cholt
Contributor

Hello! I have a Mirrorless R6 with an adapter and an EF 28-70 L. It was working fine, then this error popped up…”Communication with the device is faulty. Check the camera, lens, or mount contacts.” I tried to use it with another Canon camera and it shoots 4-5 shots then the error message pops up again. I’ve cleaned it, not sure if I need to just send it in to get fixed. It’s the older model so not sure with cost of sending it in if it would be expensive. Thoughts? #lens 

10 REPLIES 10

ebiggs1
Legend
Legend

Still it is most likely the problem. I urge you to find a DSLR to try the lens on. That will prove whether the lens has a problem or not and if not it is most definitely the off brand adapter.

EB
EOS 1D, EOS 1D MK IIn, EOS 1D MK III, EOS 1Ds MK III, EOS 1D MK IV and EOS 1DX and many lenses.
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