![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? :
![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
![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)