Canon Knowledge Base - Error Codes (EOS 5DS / EOS 5DS R)
Solved: Help me diagnose this focusing motor problem on my... - Canon Community
How to Fix the Err1 Error 1 Canon 24-105 Lens Communication Problem - Chicvoyage
Canon 24-70mm f2.8 ii flex cable ribbon problem ag... - Canon Community
Canon Knowledge Base - Error 01 displayed on an EOS Mirrorless Camera.
Canon Error 1 Problem - How to fix faulty lens communication Canon camera & lens. - YouTube
Canon Err 01 - How to fix faulty lens communication 📷 - YouTube
Canon EF 24-70mm 2.8L II USM Lens Communication Error 1 Fix Replace PDU Assembly by Works Perfect - YouTube
Received an error code 01 on a 24-105mm I USM F.4, solutions? Already cleaned contacts too : r/canon
Pin on fix Canon Error 01
Common Canon Error Codes and Solutions
Err 01 Communications between the camera and lens is faulty. Clean the lens contacts Quick Fix - YouTube
Err 01' on Canon 24-70mm f/4 L IS USM :( - YouTube
Err 01 and no manual focus (Canon lens) - Photography Stack Exchange
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? :