troubleshooting - My Canon DSLR is showing "Err 01" — should I send my camera for service? - Photography Stack Exchange
error code 1: Canon EOS R Talk Forum: Digital Photography Review
How to Clean Camera Lenses. Over 15 Experts Give Feedback
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? :
faulty lens 28-105mm - Canon Community
Canon DSLR Error 01 Free and Easy FIX | Works for ALL Canon DSLR - YouTube
The Most Common DSLR Errors and Solutions | Onsitego Blog
Corrosion/damage to lens contacts, any fix? I keep getting error 01 : r/ canon