Sad to say, I'm working with what's probably a 10-year old Canon 10D, and I've just gotten the Error 99 message every time I try to take a shot. The only fix in the manual is to take out and re-insert the battery. Doesn't work. Is there any fix for this? Thank you!
OMG, you have saved the day! The depression of being a photographer with no camera has lifted. I tried another lens and the camera worked. I then thoroughly cleaned the connectors (?) in the offending lens and it too worked. So, thank you for pointing me in the right direction. I'm most grateful!
