Error 99 !

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Got a shot i really liked , pressed the shutter and the viewfinder dimmed and the display came up " error 99 ". I replaced the battery , turned on and off yet the viewfinder still remained dark and still the error. I tried a close up shot of anything and it worked fine , the instant i zoom right out the viewfinder goes dark and error.

:bang::bang:
 
Try cleaning the contacts on the lens and the body. Err99 is the catch-all "I don't know what's wrong but something is" error on canon camera's - usual source is a bad connection between lens and body.
 
It's the lens , i put the sigma on it zoomed in zoomed out worked perfect. This one as soon as i put the other lens on and zoom right out " Err 99 ". I've cleaned the contacts and it still does it . Also with my ear up against it , it sounds like something is grating as i rotate the lens on zoom out.

Oh well no photography for awhile :(
 
We used to get this on out D60/10D/20D cameras when using Sigma lenses. We had the lenses re-chipped to work with them but they still never were that reliable. Error 99 was the bane of my life for several months!!
 
Which lens and which camera?
I believe that the 50d had a firmware which update which gave a few more useful errors.
 
Cool i'll try it now


EDIT : No go and i can certainly see the blades getting stuck , the dof preview button isn't freeing them :(
 
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