Drop an ARW RAW file from your Sony Alpha 99 II (ILCA-99M2) and get the exact shutter actuation count in seconds — processed entirely in your browser, never uploaded anywhere.
Check Shutter Count →The Sony Alpha 99 II (2016), model number ILCA-99M2, is Sony's last and most capable A-mount full-frame flagship. Combining a 42.4 MP BSI-CMOS sensor with Sony's SLT (Single Lens Translucent) fixed-mirror technology, it delivers 12 fps continuous shooting with continuous AF — a combination impossible on traditional DSLRs of the same era. It inherited the A-mount lens ecosystem covering hundreds of native lenses and generations of Minolta AF glass.
| Model | Release | Sensor | Rated Shutter Life | RAW Format |
|---|---|---|---|---|
| Sony Alpha 99 II (ILCA-99M2) | 2016 | 42.4 MP Full Frame BSI | 500,000 actuations | ARW |
| Sony Alpha 77 II (ILCA-77M2) | 2014 | 24.3 MP APS-C | 150,000 actuations | ARW |
| Sony Alpha 77 (SLT-A77) | 2011 | 24.3 MP APS-C | 150,000 actuations | ARW |
The Sony a99 II does not expose the shutter count in its menu system. The counter is stored in the encrypted MakerNote tag 0x9050 within every ARW RAW file.
Processing runs entirely on your device. The ARW file is never sent to any server, making it safe to check cameras you are evaluating for purchase.
With an officially rated 500,000 actuations, the a99 II has one of the highest shutter life ratings ever published for a Sony camera. Interpret counts differently from entry-level bodies.
| Actuations | Assessment |
|---|---|
| 0 – 20,000 | Barely used — excellent condition |
| 20,000 – 80,000 | Low use — well under 20% of rated life |
| 80,000 – 200,000 | Normal professional use — significant life remaining |
| 200,000 – 350,000 | High use — price accordingly; shutter service may be approaching |
| 350,000 – 500,000 | Near rated life — budget for shutter replacement |
| 500,000 + | Beyond rated life — shutter replacement likely needed |
Many pro bodies exceed their rated actuation count considerably, but a 500,000+ unit warrants inspection of the shutter mechanism before purchase. The a99 II shutter replacement cost is significant; factor it into the asking price.
The Sony Alpha 99 II produces images in Sony's ARW format. ShutterCount reads the encrypted MakerNote tag 0x9050 that Sony embeds in the ARW EXIF structure — the same tag used across the entire Sony Alpha E-mount and A-mount lineup.
All parsing happens in your browser. Nothing is uploaded.
Sony frequently strips the MakerNote from in-camera JPEGs, removing the shutter count. For reliable results, always use an ARW RAW file. Enable RAW shooting in the Quality/Image Size menu before taking the test shot.
Yes — for photographers with an existing A-mount lens collection, the a99 II remains unmatched within that ecosystem. Its 42.4 MP sensor, 5-axis IBIS, and 12 fps SLT burst capability are impressive even by current standards. Second-hand prices have dropped substantially since Sony discontinued A-mount development, making it an excellent value proposition with a verified shutter count.
Shoot an ARW RAW file, then drop it into shuttercount.app. The count is extracted from the encrypted MakerNote tag entirely in your browser — no upload needed.
Sony officially rates the ILCA-99M2 shutter at 500,000 actuations — one of the highest published ratings of any Sony camera and significantly higher than entry or mid-range bodies.
No — the fixed translucent mirror never moves, so it contributes zero wear. Only the focal-plane shutter curtains increment the counter. Sony designs the shutter specifically for high-cycle professional use, reflected in the 500,000-actuation rating.
Only a Sony authorised service centre can reset the counter following a physical shutter replacement. EXIF-editing software can modify the file's metadata but cannot alter the in-camera counter. Always verify from an original, unmodified ARW file.
ShutterCount supports all Sony Alpha E-mount and A-mount cameras. See related guides: