Drop an ARW RAW file from your Sony A6100 (ILCE-6100) and get the shutter actuation count in seconds — processed entirely in your browser, never uploaded anywhere.
Check Shutter Count →The Sony A6100 is Sony's entry-level APS-C mirrorless camera, released in 2019. It features the same 24.2 MP sensor and Real-time Eye AF as the A6400, packaged in a more affordable body — making it one of the most popular choices for beginners stepping into mirrorless photography.
| Model | Release | Sensor | Rated Shutter Life | RAW Format |
|---|---|---|---|---|
| Sony A6100 (ILCE-6100) | 2019 | 24.2 MP APS-C | ~100,000 actuations | ARW |
| Sony A6400 (ILCE-6400) | 2019 | 24.2 MP APS-C | ~200,000 actuations | ARW |
| Sony A6600 (ILCE-6600) | 2019 | 24.2 MP APS-C | ~200,000 actuations | ARW |
The A6100 does not display the shutter count in its menus. The count is embedded in every ARW RAW file, encrypted within the MakerNote.
When buying a used A6100, ask the seller to provide an original, unedited ARW file shot recently for the most accurate reading.
The Sony A6100 is rated for approximately 100,000 actuations. Here is a general guideline for evaluating used units:
| Shutter Count | Assessment |
|---|---|
| 0 – 10,000 | Very low use — near new |
| 10,000 – 30,000 | Light use — excellent condition |
| 30,000 – 60,000 | Moderate use — well within rating |
| 60,000 – 100,000 | High use — approaching rated life |
| 100,000+ | Beyond rated life — shutter replacement may be needed |
The Sony A6100 writes images in Sony's ARW format. ShutterCount parses the TIFF/EXIF structure, locates the Sony MakerNote, and reads tag 0x9050. This tag is encrypted using Sony's cubic-residue cipher (b³ mod 249). After decryption, the shutter count is found at byte offset 0x003a.
This is the same tag and offset used by the A6400, A6600, A7 III, A7 IV, A9, and ZV-E10. The encryption ensures the data cannot be trivially edited.
Shoot an ARW RAW file and drop it into shuttercount.app. The encrypted shutter count is decrypted from tag 0x9050 in your browser — no upload needed.
No. The encrypted counter in tag 0x9050 is persistent and not affected by formatting the card or resetting the camera.
The encrypted MakerNote block is difficult to tamper with. While basic EXIF fields can be edited, the encrypted shutter count reflects what the camera wrote at capture time. Always verify from an original ARW file.
Both use the same sensor and shutter count mechanism (tag 0x9050, offset 0x003a). The A6400 has a higher shutter rating (~200,000 vs ~100,000), a magnesium-alloy body, and no built-in flash.
ShutterCount supports all modern Sony bodies. See related guides: