Hi,
I wonder if I could ask for a little assistance?
I have an EOS 20D ans on my Ultrasonic 17 - 85mm Lens I started to get the Err 99, I borrowed a friends lens and it didn't give me the error 99, I gave it back and still got the error on my owm lens, so I bought the standard cheap lens that comes with mose DSLR's from canon off of ebay and I still got the error, what I am trying to establish now is, do you think it is likely that I have two bad lenses? as when I fire away with no lens attached I don't get the error.
I have tried all of the common resolutions such as eraser trick, battery pull, new CF card, left without power over night, left in sensor clean mode etc etc, no change.
It's very confusing and I'm not sure what to try next - I simply don't have the cash to throw away on a guess!
Thanks in advance for any help you can offer...
Regards,
Mark