Quote Originally Posted by Kayaker72 View Post
Hi Marc,

Yes, I see that for ShutterCount, but did you try www.EOScount.com? It is what I used for my 7D and 5DIII and on their website it says it will work with "any EOS DSLR that has Digic III or later."

Checking both the 1DIII and 1DsIII, both are dual digic 3 according to TDP specs page.

Hope it works for you,
This is in the FAQ of www.EOScount.com:
DIGIC II and dual DIGIC III cameras are not supported. For example, shutter count is not available for the original 5D (Mark I), the 1D Mark III, and the 1Ds Mark III. EOS M (mirrorless) models are also not supported.