Drop a CR3 RAW file from your Canon EOS R6 Mark IV and get the exact shutter actuation count in seconds — processed entirely in your browser, never uploaded anywhere.
Check Shutter Count →The Canon EOS R6 Mark IV is the fourth generation of Canon's popular full-frame EOS R mirrorless, building on the R6 Mark III (2025). It sits between the advanced R5 Mark III and the entry-level R8 in Canon's mirrorless lineup, targeting enthusiast and professional event and sports photographers who need speed, reliability, and excellent autofocus.
| Model | Release | Sensor | Shutter Count Field | RAW Format |
|---|---|---|---|---|
| Canon EOS R6 Mark IV | 2026 | 24.2 MP full-frame CMOS | CR3 MakerNote | CR3 |
| Canon EOS R6 Mark III | 2025 | 24.2 MP full-frame | ImageCount (0x086D) | CR3 |
| Canon EOS R6 Mark II | 2022 | 24.2 MP full-frame | Offset 0x0D29 | CR3 |
The Canon EOS R6 Mark IV does not display shutter count in its menus. The CR3 file is the only way to read it without visiting a Canon service centre.
The R6 Mark IV is rated for professional-grade shutter durability — comparable to the R6 III generation:
| Count | Assessment |
|---|---|
| 0 – 30,000 | Very low use — essentially new |
| 30,000 – 100,000 | Low to moderate use |
| 100,000 – 200,000 | Moderate use — plenty of life remaining |
| 200,000 – 280,000 | High use — negotiate accordingly |
| 280,000 + | High use — factor in potential shutter service cost |
The Canon EOS R6 Mark IV writes images in Canon's CR3 format — an ISOBMFF container. ShutterCount parses the box hierarchy to locate the embedded EXIF block, then reads the Canon MakerNote CameraInfo section to extract the shutter count field.
Canon has used different byte offsets for the shutter count field in each R6 generation: the original R6 stored it at 0x0AF1, the R6 Mark II at 0x0D29, the R6 Mark III at 0x086D (shared with the R1 and R50 V). ShutterCount identifies the model from EXIF metadata and selects the correct offset automatically.
No. Electronic shutter exposures do not use the mechanical curtain and are not recorded in the CR3 MakerNote counter. Only mechanical and EFCS (Electronic First Curtain Shutter) frames increment the count.
Drop a CR3 RAW file into shuttercount.app. The count is read from the MakerNote CameraInfo block entirely in your browser — no upload needed.
Canon does not expose the shutter count counter in the camera's menu system on the EOS R series. It is accessible only via the CR3 RAW file or a Canon authorised service centre.
Only a Canon service centre can reset the hardware counter after a shutter replacement. EXIF-editing software can overwrite metadata fields but cannot alter the in-camera counter.
The R6 Mark IV inherits the R6 III's DIGIC processor generation and adds improvements in burst speed, AF tracking, and video codec options. Both cameras use CR3 format, though the MakerNote layout may differ between generations.