wow, that's sad to hear. Is this common for the 5D? What about the 20D? There are plenty of older 20Ds out there, any signs of wear?
I use it just about daily so it is to be expected. If I average 200 shutter activations a day that adds up to 70,000 in a year. I believe the new 1Ds Mk III is rated at 300,000 activations.

The 5D is a great camera, but I'd trade this in a heartbeat for a 1DsMIII money notwithstanding.



