Help: Strange banding on 1DsIII shots

[b.d.bop]

Anyone have any idea why on certain images (not all) which I take with my 1DsIII I should get this band of lighter exposure? It's got nothing to do with which lens I'm using.

http://i2.photobucket.com/albums/y28/b_d_bop/1Ds-Banding.jpg

If you have a clue as to what might be causing this, please pipe up! :confused:

[Jim G]

Does it change depending on what shutter speed you're using? Could be a shutter issue (sticking etc.).

[Perry Ge]

Looks like your shutter is about ready to die soon. Unfortunate.

[b.d.bop]

Does it change depending on what shutter speed you're using? Could be a shutter issue (sticking etc.).
Thanks, Jim. I need to do some testing myself with different shutter speeds, etc.

Looks like your shutter is about ready to die soon. Unfortunate.
Very unfortunate considering it has only about 2-3000 actuations.

[b.d.bop]

Looks like your shutter is about ready to die soon. Unfortunate.

You were right. Canon replaced the entire shutter curtain assembly. Thanks. :)