I recently cleaned my Canon 50mm f/1.8 STM lens using eyeglasses cleaner and a microfiber cloth. A few minutes afterward, I noticed condensation inside the lens, so I placed it in a safe place and let it dry out.
The problem: When I connect the lens to my camera (80D), it reads that the aperture is always "00", and gives Err 01 when I try to take a photo. Other lenses still work fine.
What I have tried:
- Cleaning the lens contacts. This is suggested by everyone, it didn't work.
- I disassembled the back end of the lens and looked inside. (I am comfortable working with electronics, and the warranty wouldn't cover damages if a liquid was involved in any way.) I don't see any damage to the inside circuits.
Is this a known problem, or is there a known solution? Please help, any suggestions are appreciated.