EOS RP + EF to R Adapter + EF 1.4 Teleconverter = Err 01: Canon EOS R 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
![canon error 01-How to fix faulty lens communication in hindi!Canon Dslr err01 fix in 5 Mins - YouTube canon error 01-How to fix faulty lens communication in hindi!Canon Dslr err01 fix in 5 Mins - YouTube](https://i.ytimg.com/vi/zmfNKDwBpWw/mqdefault.jpg)
canon error 01-How to fix faulty lens communication in hindi!Canon Dslr err01 fix in 5 Mins - 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)
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? :
![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
![Canon Err 01 - How to fix faulty lens communication|CANON ERROR 01 Killer problem-Emergency solution - YouTube Canon Err 01 - How to fix faulty lens communication|CANON ERROR 01 Killer problem-Emergency solution - YouTube](https://i.ytimg.com/vi/e6B6upH4Ksg/maxresdefault.jpg)
Canon Err 01 - How to fix faulty lens communication|CANON ERROR 01 Killer problem-Emergency solution - YouTube
![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)