The Olympus E-330 (2006) — the world’s first interchangeable-lens DSLR with Live View — carries an estimated ~100,000-actuation shutter rating. ORF files do not reliably embed the count; use the camera menu for the authoritative reading.
Check Shutter Count →The Olympus E-330 (January 2006, announced PMA) was the world’s first interchangeable-lens digital SLR with a true Live View shooting mode. It achieved this through a dual-sensor architecture: a secondary CCD sensor at the top of the mirror box enabled Mode A Live View (preview with mirror down, suitable for casual framing), while Mode B raised the main mirror and used the primary 7.5 MP Panasonic Live MOS sensor for high-resolution, contrast-detect Live View. Its 2.5-inch rear LCD and this dual-mode Live View directly influenced every DSLR and mirrorless camera that followed. The E-330 used a TruePic III processor, SSWF ultrasonic dust reduction, CompactFlash card slot, and BLM-1 battery.
| Model | Type | Sensor | Est. Shutter Life | RAW Format |
|---|---|---|---|---|
| Olympus E-330 | Four Thirds DSLR | 7.5 MP Four Thirds Live MOS | ~100,000 | ORF |
| Olympus E-300 (predecessor) | Four Thirds DSLR | 8 MP Four Thirds CCD | ~100,000 | ORF |
| Olympus E-410 (successor) | Four Thirds DSLR | 10 MP Four Thirds Live MOS | ~100,000 | ORF |
| Canon EOS 1D Mark II N (era competitor) | APS-H DSLR | 8.2 MP APS-H | 200,000 | CR2 |
exiftool -OlympusCameraSettings:ShotNumberSincePowerUp yourfile.ORF. Note that this tag may represent shots since the last power cycle, not the lifetime total — use it as an approximate indicator only.The E-330’s dual-sensor Live View system involves additional mirror cycling — switching between Mode A (mirror down) and Mode B (mirror up) can increment the shutter count differently than standard shooting. Treat shutter count as one data point alongside overall condition assessment.
| Actuation Count | % of Est. Life | Assessment |
|---|---|---|
| 0 – 10,000 | 0 – 10 % | Very low use — excellent condition |
| 10,000 – 40,000 | 10 – 40 % | Low use — good value |
| 40,000 – 70,000 | 40 – 70 % | Moderate use — inspect carefully |
| 70,000 – 90,000 | 70 – 90 % | Heavy use — budget for possible service |
| 90,000 + | 90 %+ | Near or past estimated life |
Olympus did not officially publish a rating. ~100,000 actuations is the widely accepted community estimate for this prosumer-grade Four Thirds body.
Mode A used a secondary CCD sensor positioned above the main mirror (with the mirror down) to deliver a real-time live preview on the LCD. The main shutter was not actuated during Mode A preview, making it a true “live” view. Mode B locked the main mirror up and used the full 7.5 MP Live MOS sensor for a higher-quality preview with contrast-detect autofocus — at the cost of using the main sensor (no optical viewfinder available, sensor heating on long sessions).
Mode A Live View does not increment the mechanical shutter. Mode B Live View requires raising the mirror (one mirror actuation per Mode B activation) and then pressing the shutter button fires the shutter normally. For cameras that were used heavily in Mode B Live View, the mirror mechanism may show more wear than the shutter count alone suggests.
Yes. All Olympus Zuiko Digital Four Thirds lenses mount on Micro Four Thirds cameras (OM System OM-1, Olympus E-M1 series, Panasonic G bodies) using the MMF-3 adapter with full phase-detect AF support on OM System bodies.