The Olympus E-420 (2008) was marketed as the world’s smallest and lightest DSLR at launch — 10 MP Live MOS Four Thirds sensor, ultra-compact 130×91×53 mm body, Supersonic Wave Filter dust reduction, and ORF RAW output. Shutter count must be read from the camera menu, as ORF files do not reliably embed it.
Check Shutter Count →Released in April 2008, the Olympus E-420 was the entry-level model in Olympus’s 2008 Four Thirds DSLR refresh alongside the mid-range E-520. It succeeded the E-410 (2007) — which had already claimed the smallest DSLR title — and further refined the compact formula with a 2.7-inch LCD (up from 2.5 inches on the E-410) and minor AF improvements. The E-420 omitted in-body IBIS to maintain its minimal dimensions; that feature was reserved for the E-520.
The E-420 features a 10.0 MP Four Thirds Live MOS sensor, TruePic III+ image processor, 7-point phase-detect AF, built-in pop-up flash, and the Olympus SSWF dust reduction. Olympus does not publish an official shutter rating. The estimated lifespan based on the entry-level Four Thirds class is approximately ~100,000 actuations.
| Model | Release | Sensor | Shutter Life | IBIS | RAW |
|---|---|---|---|---|---|
| Olympus E-420 | 2008 | 10 MP Four Thirds Live MOS | ~100,000 (est.) | No | ORF |
| Olympus E-410 (predecessor) | 2007 | 10 MP Four Thirds Live MOS | ~100,000 (est.) | No | ORF |
| Olympus E-520 (contemporary, with IBIS) | 2008 | 10 MP Four Thirds Live MOS | ~100,000 (est.) | Yes (~2.5 stops) | ORF |
| Olympus E-620 (successor era) | 2009 | 12.3 MP Four Thirds Live MOS | ~100,000 (est.) | Yes | ORF |
exiftool -ImageCount yourfile.ORF. ExifTool may return an image counter value, but this has not been confirmed as identical to the mechanical shutter count — treat it as an approximation only.The E-420 was released in 2008 — over 17 years ago. Alongside shutter count, inspect the pop-up flash mechanism (hinge can weaken with age), the rubber grip adhesive, and the BLS-1 battery health. The 2.7-inch fixed LCD should be checked for dead pixels and coating wear.
| Actuation Count | % of Est. Life | Assessment |
|---|---|---|
| 0 – 5,000 | 0 – 5 % | Very low use — near new |
| 5,000 – 30,000 | 5 – 30 % | Low use — good condition |
| 30,000 – 60,000 | 30 – 60 % | Moderate to heavy use |
| 60,000 – 85,000 | 60 – 85 % | High use — negotiate price |
| 85,000 + | 85 %+ | Near or past est. life — budget for shutter service |
The E-420 achieves its compact dimensions (130 × 91 × 53 mm, ~380 g body only) by using the Four Thirds sensor format — smaller than APS-C — and by omitting in-body IBIS. The pentamirror viewfinder (vs the more complex pentaprism) also contributes to the smaller, lighter body.
The E-420 uses the Four Thirds (FT) mount. All Olympus and third-party Four Thirds lenses mount and AF natively. The compact kit lens pairing was the Olympus 25mm f/2.8 pancake lens — creating an extremely pocketable DSLR system when combined. Micro Four Thirds lenses require the MMF-2 or MMF-3 adapter; AF with MFT lenses on the E-420 is typically slow.
For users without IS lenses, the lack of in-body IBIS means handheld shots at slow shutter speeds require careful technique. The companion E-520 model offers in-body IBIS in a slightly larger body.
Not reliably. Olympus ORF files from the E-420 era do not embed a confirmed mechanical shutter count. Use the camera menu (MENU → Set-up → Camera Information) for an accurate reading.
The E-420 is the direct successor to the E-410 (2007). Both share the same 10 MP Four Thirds Live MOS sensor and lack in-body IBIS. The E-420 upgrades the LCD from 2.5-inch (230k dots) to 2.7-inch (230k dots), adds Face Detection, and refines the AF speed. The E-410 used the BLS-1 battery — the same as the E-420. Practically, the two cameras are very similar.
For hobbyist and travel use with Zuiko Digital lenses, the E-420 remains functional. The 10 MP sensor produces clean files at base ISO. Practical ISO ceiling is around ISO 800 before noise becomes objectionable. The lack of video (stills only) and the 17+ year age of all remaining units are the primary limitations. A used Olympus E-M10 or PEN E-PL5/E-PL7 body offers far better performance in the same MFT lens ecosystem.
The E-420 uses the BLS-1 lithium-ion battery — a smaller pack than the BLM-1 used in the E-510/E-520/E-620. The BLS-1 is shared with the E-410, E-450, E-600, and the Olympus PEN E-PL1. Original cells from 2008 are severely degraded; third-party BLS-1 compatible replacements are inexpensive.