Hi! Welcome to the Canon Forums and thanks for your post! If you want to find the shutter count of your EOS 5D Mark III, you will need to send your camera in to be evaluated with a request for shutter count included. Our technicians will send you an estimate to let you know the cost, if there is a EOS 90D Determining Shutter Count in EOS DSLR & Mirrorless Cameras 11-30-2023; EOS-1D X Mark II Does shutter count matter when buying used? in EOS DSLR & Mirrorless Cameras 11-28-2023; EOS 5D MK III - Upgrade Thoughts in EOS DSLR & Mirrorless Cameras 11-06-2023 The 1D III and 1D IV are both equipped with a mechanism that is estimated to last at least 300 000 shutter cycles. My friend and colleague has a 1D which has been used since 2002 and which is still working fine. Per Inge Oestmoen, Norway. I had 1DMk2 and the shutter failed at around 15000. I just went to that site and they came back with a shutter count of 2,714. I have had this camera since 2009, shoot nearly every day, some times averaging 2,400 shutter clicks per day. I have taken so many pictures it is insane. So I think that shuttercounter.com is NOT a reliable source for a EOS 1D Mark 3 Hello Bajatony1, The only way to get an accurate shutter count, or actuations- on Canon EOS DSLR bodies is to have the Canon Factory Service Center provide it. They need to have the camera on hand in order to run the test to get an accurate measurement on your camera's shutter. If you would lik The 1Ds Mk III is still pretty pricy as a lot are still working hard in the pro arena. The 1D Mk IV is the real jewel but still on the high side cost wise. Lots of peopel want them as they are the last of the 1.3 sensor. Any part of a Mk III can be replaced. The shutter is rated at 300,000 clicks but I know of some that have gone over half a There are a number of apps that claim to provide an accurate shutter count that actually alter the firmware in the camera. These changes can alter the behavior of the camera, and have been known to cause unexpected failures. Also, many people swear by the importance of knowing the shutter count. The shutter will fail when it gets good and ready. I know these are estimates and I know of cameras that far exceed it. I know a guy that has a 1Ds Mk III exactly like mine. The Canon estimate for this workhourse is 300k but he went pass 1,000,000. They claim that 33% of the 1Ds Mk III's will do that. kjxj3E.