Hi all,
I have recently bought a Canon 10D and got at first sporadic "Err 99" messages, and then it got so that almost every pic I was taking came up with this error message, so I rang Canon, and they asked me what lenses I had and I said that I have Sigma lenses, and they said that was the problem. Has anyone else used and successfully taken pics with it without Canon lenses? Please note the firmware I have is 1.0.0.0. This is extremely frustrating, but those pics I got that day (this past Saturday. 3 May) turned out awesome despite it being really dark and heavy overcast weather. I was wondering if I'd have to call it quits early because it was getting really nasty here and looked like it was going to rain but never did (thankfully). I can say even under the conditions, it performed awesome and I got the real sense of depth that 35mm film seems to lack as noted on holiday taking pics in the Austrian Alps. I can also say that even the one pic that wasn't that great I wasn't really concerned, as I was able to adjust the lighting and it looks great. What's the worst I could do? I could delete it and try again! It's not like 35mm where you have to wait to get it developed! That said, any help would be appreciated.
) and I have had NO ISSUES. To me its the best lens I've ever used,. (and the only one lol )

