...the image in the view finder jumps around and it is also making a repeated motor type noise. i flipped all the switches to see if it would make it stop and that didnt help. i put the lens on my 7D and it did the same thing. other lenses on my cameras dont do this. does anybody have any ideas.
Hi junior5, welcome to Canon Rumors!
I remember an old thread on TDP dealing with your same issue, the only difference being the lens. The OP had his lens fixed by Canon. Here's the link: http://community.the-digital-picture.com/showthread.php?t=2010&highlight=faulty+gyro
To summarize, Canon's diagnosis and therapy were:
Stabiliser appears stuck making continuous noise. Dismantle the lens replace the complete lens assy. Clean externally and swapped over / replaced the leatherette. Test the optics and the resolution.