Canon EOS R3 Shutter Count

The CTMD structure differs enough from the R5/R6 that we haven't located the right offset yet — needs its own sample-file investigation.

Canon, Nikon, Sony and Fujifilm publish a rated shutter durability for most bodies — for the EOS R3, that figure is approximately 500,000 actuations. This is a statistical durability rating from the manufacturer, not a hard limit — many shutters keep working well past it, and some fail earlier.