Drop an ARW file from your Sony RX100 (DSC-RX100) and get the exact mechanical shutter actuation count in seconds — processed entirely in your browser, never uploaded anywhere.
Check Shutter Count →The Sony RX100 (DSC-RX100, 2012) was the camera that proved you could fit a 1-inch sensor into a shirt pocket. Before it, enthusiast compacts used tiny 1/2.3-inch sensors. Sony's breakthrough — a 20.2 MP BSI Exmor CMOS sensor paired with a ZEISS Vario-Sonnar T* 28–100 mm f/1.8–4.9 lens — delivered DSLR-class image quality in a body that fits in a jacket pocket.
It launched an entire product line that ran through seven generations, and its influence on the compact camera market is still felt today. For buyers on a budget, the original RX100 remains a remarkable used purchase more than a decade after release.
| Spec | Value | Note |
|---|---|---|
| Model name | DSC-RX100 | Mark I |
| Released | 2012 | July 2012 |
| Sensor | 20.2 MP 1-inch BSI Exmor CMOS | Large for a compact |
| Lens | 28–100 mm f/1.8–4.9 | ZEISS Vario-Sonnar T* |
| EVF | None | Added in RX100 II (accessory) / III (built-in) |
| RAW format | ARW | Shutter count in MakerNote 0x9050 |
| Est. shutter life | ~200,000 actuations | Not officially published |
| Silent shutter | None | Every shot = +1 on mechanical counter |
| Mechanical Count | % of Est. Life | Assessment |
|---|---|---|
| 0 – 5,000 | < 3 % | Very low use — near new |
| 5,000 – 40,000 | 3 – 20 % | Light use |
| 40,000 – 100,000 | 20 – 50 % | Moderate use — inspect carefully |
| 100,000 – 160,000 | 50 – 80 % | Heavy use — negotiate price |
| 160,000 + | 80 %+ | Near or past estimated life |
The original RX100 was released in 2012 — used bodies are now 13+ years old. Beyond the shutter count, inspect the lens barrel for smooth zoom action and any scratches, check the lens elements for fungus or haze (common on older compacts), battery charge capacity (NP-BX1 batteries degrade over time), and the micro-USB port for signs of wear.
The Sony RX100 stores the mechanical shutter count encrypted in ARW MakerNote tag 0x9050 using Sony's proprietary cipher. ShutterCount applies the correct decryption for the RX100 and reads the count from the appropriate byte offset. All processing happens locally in your browser — no file data is sent to any server.
This is the same encrypted tag structure used across the entire Sony E-mount and A-mount ecosystem, from the original RX100 through to the A1 II and A7R V.
| Model | Year | Key Addition | Lens |
|---|---|---|---|
| RX100 (I) | 2012 | Original — 1-inch sensor | 28–100 f/1.8–4.9 |
| RX100 II | 2013 | BSI sensor, hot shoe, NFC | 28–100 f/1.8–4.9 |
| RX100 III | 2014 | Built-in OLED EVF, ND filter | 24–70 f/1.8–2.8 |
| RX100 IV | 2015 | Stacked sensor, 4K video, slow-mo | 24–70 f/1.8–2.8 |
| RX100 V | 2016 | Phase-detect AF (315 points) | 24–70 f/1.8–2.8 |
| RX100 VI | 2018 | 24–200 mm zoom lens | 24–200 f/2.8–4.5 |
| RX100 VII | 2019 | Real-time tracking AF | 24–200 f/2.8–4.5 |
For stills, yes. The 20.2 MP 1-inch sensor and f/1.8 lens remain genuinely excellent. However the RX100 lacks an EVF, lacks 4K video, has no touchscreen, no pop-up flash (wait, it actually does have a pop-up flash — a feature removed on some later models), and no silent shutter. As a pocketable stills camera at used prices under $100, it delivers exceptional image quality. For video or viewfinder work, the RX100 III or later is the better choice.
The RX100 uses a Memory Stick Micro (M2) or microSD card via the combination slot. A Class 10 or UHS-I microSD is sufficient for burst shooting and video on this model. The RAW ARW files are approximately 17–18 MB each.
The RX100 II (2013) added a Multi Interface Shoe for accessories including the FDA-EV1MK electronic viewfinder, NFC for smartphone connectivity, a tilting LCD, and a slightly improved sensor with better high-ISO performance. The lens (28–100 mm f/1.8–4.9) is identical. If EVF use is important to you, the II is worth the modest premium over the original.
Yes. The RX100 saves RAW files in Sony's ARW format. RAW capture is essential for reading the shutter count via shuttercount.app, as in-camera JPEGs have the encrypted MakerNote data stripped out.