Drop an ARW file from your Sony A7CR (ILCE-7CR) and get the exact mechanical shutter actuation count in seconds — processed entirely in your browser, never uploaded anywhere.
Check Shutter Count →The Sony A7CR (ILCE-7CR), released in 2023, is the high-resolution variant in Sony's compact A7C series. It combines the 61 MP BSI full-frame sensor from the A7R IV with the compact, rangefinder-style A7C II body — making it the highest-resolution camera to fit in such a small full-frame body. The mechanical shutter is rated at 300,000 actuations, the same as the A7C II, though both trail the A7R IV and A7R V (500,000) from which the sensor is derived.
| Model | Release | Sensor | Rated Shutter | ARW Offset |
|---|---|---|---|---|
| Sony A7CR (ILCE-7CR) | 2023 | 61 MP full-frame BSI | 300,000 | 0x000a |
| Sony A7C II (ILCE-7CM2) | 2023 | 33 MP full-frame BSI | 300,000 | 0x000a |
| Sony A7R V (ILCE-7RM5) | 2022 | 61 MP full-frame BSI (same sensor) | 500,000 | 0x003a |
Use a file shot with the mechanical shutter, not the silent / electronic shutter. Electronic shutter frames do not increment the mechanical counter.
| Shutter Count | % of Rated Life | Assessment |
|---|---|---|
| 0 – 10,000 | < 4 % | Lightly used |
| 10,000 – 70,000 | 3 – 23 % | Normal use for age |
| 70,000 – 150,000 | 23 – 50 % | Moderate — inspect carefully |
| 150,000 – 270,000 | 50 – 90 % | Heavy use — price accordingly |
| 270,000 + | 90 %+ | Near or past rated life |
The Sony A7CR stores its mechanical shutter count encrypted in ARW MakerNote tag 0x9050. ShutterCount applies Sony's cubic residue decryption algorithm (modulo 249) and reads the count from byte offset 0x000a — the 2023-generation offset used by the A7CR, A7C II, and A6700. All decryption is performed locally in your browser.
Shoot a mechanical ARW frame and drop it into shuttercount.app. The count is decrypted from tag 0x9050 at offset 0x000a in your browser, instantly and privately.
Sony rates the A7CR at 300,000 actuations — higher than the A7C original (200,000) but lower than the A7R V and A7R IV (both 500,000), which use the same 61MP sensor in a larger body.
The shutter mechanism is separate from the sensor. The A7CR's compact body accommodates a lighter-duty shutter unit (300,000-actuation rated) to fit in the smaller chassis, while the A7R V's larger body houses a more robust shutter (500,000-actuation rated). The 61MP sensor is identical in both cameras.
The A7R V offers 8-stop IBIS (vs 5-stop on A7CR), a far superior EVF, 4K/60p video, and a 500,000-actuation shutter. The A7CR wins on portability — significantly smaller and lighter for travel. For backcountry or travel landscape work where pack weight matters, the A7CR is compelling. For studio or tripod landscape use, the A7R V is the better tool.
Only Sony authorised service centres can reset the hardware counter. Always verify from an original ARW file, not a screenshot.