Drop a CR3 RAW file from your Canon EOS R6 or R6 Mark II and get the exact shutter actuation count in seconds — processed entirely in your browser, never uploaded anywhere.
Check Shutter Count →Canon specifies shutter durability as the number of actuations at which the median shutter unit is expected to reach end of life. Knowing the current count lets you estimate remaining lifespan — critical when buying a used body.
| Model | Release | Sensor | Rated Shutter Life | RAW Format |
|---|---|---|---|---|
| Canon EOS R6 | 2020 | 20.1 MP full-frame | 300,000 | CR3 |
| Canon EOS R6 Mark II | 2022 | 24.2 MP full-frame | 500,000 | CR3 |
The Canon EOS R6 does not display the shutter count in its on-screen menus. The count is embedded in the MakerNote metadata of every CR3 RAW file the camera produces. You can read it with ShutterCount:
You can also drag multiple CR3 files at once to check a batch of files from different shooting sessions.
When evaluating a second-hand Canon R6, the shutter count tells you how much of the rated shutter life has already been used. Here are common reference points:
| Actuation Count | % of Rated Life (R6) | Assessment |
|---|---|---|
| 0 – 30,000 | 0 – 10 % | Very low use — near new |
| 30,000 – 90,000 | 10 – 30 % | Low use — plenty of life remaining |
| 90,000 – 180,000 | 30 – 60 % | Moderate use — normal for active shooters |
| 180,000 – 270,000 | 60 – 90 % | High use — negotiate price accordingly |
| 270,000 + | 90 %+ | Near or past rated life — factor in shutter replacement (~€150–250) |
For the R6 Mark II (rated 500,000), scale these thresholds proportionally: under 50,000 is very low use, 150,000–300,000 is moderate, above 400,000 is high.
The Canon EOS R6 stores image data in the CR3 format — an ISOBMFF (ISO Base Media File Format) container, the same standard used by HEIF and MP4. Inside the container, the main RAW image data sits alongside a full-copy of the EXIF block.
Within that EXIF block, Canon includes a MakerNote section specific to Canon cameras. ShutterCount parses the ISOBMFF box hierarchy to locate the MakerNote, then reads the appropriate byte offset for the shutter counter. The specific offset differs by camera model — ShutterCount has been validated against actual Canon R6 and R6 Mark II CR3 files.
Canon does not embed the shutter counter in the MakerNote of JPEG files produced by the R6. The counter is only reliably present in CR3 RAW files. If you shoot RAW+JPEG, use the CR3 file for the check.
No. The R6's electronic shutter mode uses the sensor's rolling readout and never moves the mechanical curtain. Those frames do not increment the hardware counter. Only mechanical and EFCS (Electronic Front Curtain Shutter) exposures are counted. The R6 Mark II adds a fully electronic global-shutter-like readout option; those shots are also not counted.
Take a photo with your Canon R6, then drop the resulting CR3 RAW file into shuttercount.app. The tool reads the shutter count directly from the file's MakerNote data in your browser — no upload required.
Canon rates the EOS R6 shutter at 300,000 actuations and the EOS R6 Mark II at 500,000 actuations. These are manufacturer-estimated median values; individual shutters may last longer or fail earlier.
The hardware counter can only be reset by a Canon authorised service centre after a physical shutter replacement. Software tools that rewrite EXIF metadata do not change the internal counter stored in the camera's firmware. Always verify from an original CR3 RAW file — never from a screenshot or exported image.
No. The electronic shutter bypasses the mechanical curtain entirely and does not increment the shutter count. Only mechanical shutter and EFCS exposures are counted.
Both the EOS R6 and R6 Mark II produce CR3 files. CR3 is Canon's ISOBMFF-based container format introduced with the EOS R system. It stores a full EXIF block — including the MakerNote containing the shutter count — inside the file container.
Yes, completely free. ShutterCount.app processes everything in your browser using JavaScript. No account, no upload, no limit on the number of files.
ShutterCount supports the full Canon EOS R system and all major mirrorless brands. See related guides: