Drop an ARW RAW file from your Sony RX10 IV (DSC-RX10M4) and get the exact shutter actuation count in seconds — processed entirely in your browser, never uploaded anywhere.
Check Shutter Count →The Sony RX10 IV (DSC-RX10M4, 2017) is Sony's most capable fixed-lens camera, featuring a 20.1 MP 1-inch stacked BSI CMOS Exmor RS sensor with ultra-fast readout, a 24–600 mm equivalent Zeiss Vario-Sonnar T* lens, 24 fps continuous burst with real-time tracking AF, 4K HDR video, and a built-in ND filter. It is one of the best super-zoom cameras ever produced and a favourite among wildlife and sports photographers who need reach without carrying interchangeable lenses.
Sony does not publish an official rated shutter life for the RX10 IV. Based on community data, the compact mechanism is estimated at approximately 200,000 actuations. The shutter count is stored encrypted in MakerNote tag 0x9050 of every ARW RAW file.
| Model | Release | Sensor | Est. Shutter Life | RAW Format |
|---|---|---|---|---|
| Sony RX10 IV (DSC-RX10M4) | 2017 | 20.1 MP 1-inch stacked BSI | ~200,000 (est.) | ARW |
| Sony RX100 VII (compact sibling) | 2019 | 20.1 MP 1-inch stacked BSI | ~200,000 (est.) | ARW |
| Sony A6700 (ILC comparison) | 2023 | 26 MP APS-C | 200,000 | ARW |
The Sony RX10 IV stores the shutter count encrypted in MakerNote tag 0x9050 of every ARW RAW file. ShutterCount decrypts and reads it automatically.
The RX10 IV is favoured by wildlife and sports photographers who frequently use the 24 fps burst mode. These use cases can accumulate actuations faster than casual photography. Always verify shutter count when buying used from active wildlife or sports shooters.
| Actuation Count | % of Est. Life | Assessment |
|---|---|---|
| 0 – 10,000 | 0 – 5 % | Very low use — near new |
| 10,000 – 40,000 | 5 – 20 % | Low use — plenty of life remaining |
| 40,000 – 100,000 | 20 – 50 % | Moderate use — normal for active wildlife shooters |
| 100,000 – 160,000 | 50 – 80 % | High use — negotiate price |
| 160,000 + | 80 %+ | Heavy use — budget for potential shutter service |
Sony stores the shutter count in ARW files in encrypted form within MakerNote tag 0x9050. The encryption uses a cubic residue cipher modulo 249: each byte is cubed modulo 249 to produce the decrypted value, using a per-model key derived from the first bytes of the tag.
This same encrypted structure applies across the full Sony ARW lineup — from the A1 flagship down to the RX10 IV super-zoom. After decryption, ShutterCount reads the 32-bit count from the appropriate byte offset within the decrypted block.
No. The RX10 IV's built-in 3-stop ND filter controls exposure by reducing light reaching the sensor, not by changing the shutter mechanism. All exposures — with or without ND — still actuate the mechanical shutter the same way.
Shoot one ARW RAW file, then drop it into shuttercount.app. The tool decrypts and reads the shutter count from MakerNote tag 0x9050 entirely in your browser.
Sony does not publish an official shutter rating for the RX10 IV. Community estimates suggest approximately 200,000 actuations. This is an informal estimate, not a Sony specification.
Yes — the RX10 IV remains one of the best long-zoom cameras available. Key things to check beyond shutter count: lens zoom smoothness across the full 24–600 mm range, autofocus performance at maximum telephoto, 4K video quality, and built-in ND filter operation (two-position: in/out at 3 stops).
The RX10 IV added a dramatically improved autofocus system based on phase-detection AF with 315 focus points (vs contrast-detect only on the III), significantly faster burst tracking, and better subject acquisition. The optical zoom range and video specs are similar. For wildlife, the AF upgrade makes the IV far more usable.