![Received an error code 01 on a 24-105mm I USM F.4, solutions? Already cleaned contacts too : r/canon Received an error code 01 on a 24-105mm I USM F.4, solutions? Already cleaned contacts too : r/canon](https://i.redd.it/sa3ae5d3hrr91.jpg)
Received an error code 01 on a 24-105mm I USM F.4, solutions? Already cleaned contacts too : r/canon
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17-85 err01 fix (aperture flex cable exchange): Canon SLR Lens Talk Forum: Digital Photography Review
![Canon : résoudre l'erreur "err 01 : communications between the camera and lens is faulty" - La boîte à idées - Le blog de Jean Chambard Canon : résoudre l'erreur "err 01 : communications between the camera and lens is faulty" - La boîte à idées - Le blog de Jean Chambard](https://media.joomeo.com/large/57efa6c92604a.jpg)
Canon : résoudre l'erreur "err 01 : communications between the camera and lens is faulty" - La boîte à idées - Le blog de Jean Chambard
EOS RP + EF to R Adapter + EF 1.4 Teleconverter = Err 01: Canon EOS R Talk Forum: Digital Photography Review
![Err 01 Communications between the camera and lens is faulty. Clean the lens contacts Quick Fix - YouTube Err 01 Communications between the camera and lens is faulty. Clean the lens contacts Quick Fix - YouTube](https://i.ytimg.com/vi/hscED9ZYQK4/maxresdefault.jpg)
Err 01 Communications between the camera and lens is faulty. Clean the lens contacts Quick Fix - YouTube
![Any idea how to fix this? It's happening with my sigma 75-300mm lenses I haven't used it in over a year. I've cleaned it with a normal cloth by nothing is helping? : Any idea how to fix this? It's happening with my sigma 75-300mm lenses I haven't used it in over a year. I've cleaned it with a normal cloth by nothing is helping? :](https://preview.redd.it/48i1il42g2551.jpg?auto=webp&s=2905285506e2389b6cc123ea59b65e2cdcc2a0ae)