Just a quick post before knocking off for the evening.
Saw a post today on canonrumors.com that had a link to a site that has a free piece of software that can read the (until now) Canon Support territory of how many actuations a shutter has. The idea is pretty basic – it uses the EOS Utility drivers (you put this .exe file in the same directory as the EOS Utility) to access the information from the camera. You plug in the camera to your computer with a USB cable, turn it on, close the EOS Utility if it starts, then start this application. Click the "Get Count" button and voila!.
This program accesses information from the Digic III processor (or the Digic IV) so the app will work on the 40D, 50D, and the 5D Mark II, but not on the 30D, or 350D,400D, etc…
It was interesting to see that my 40D has 27,010 actuations, but how accurate is it? Well, my 50D shows 3,961 – which shows 4 more than the highest image number. This results from some "remote shooting from PC" which counts as a shutter actuation, but since the file is saved directly to the computer, so the compact flash card count doesn't get increased. So I'd say that the 27k actuations reading on my 40D is pretty accurate.
This is only for the PC, not for the Mac, but you can read all the details here.
Thanks for reading!