OM System OM-5 Mark II vs OM System PEN
Every published spec side by side, with today's lowest prices for the market you've chosen.
Key differences
- Announced: Sep 2026 on the PEN, against Jun 2025 on the OM-5 Mark II.
- In-body stabilisation: Yes, 7.5 stops on the OM-5 Mark II, against Yes, 5.5 stops on the PEN.
- Weight (with battery): 393 g on the PEN, against 418 g on the OM-5 Mark II.
- Battery (CIPA shots): 410 on the PEN, against 310 on the OM-5 Mark II.
OM-5 Mark II or PEN: which should you buy?
Choose the OM-5 Mark II for its in-body stabilisation.
Choose the PEN for its weight (with battery) and battery (CIPA shots).
On paper the PEN wins more rows (2 to 1); if the OM-5 Mark II's strengths are the ones you shoot with, and its price is lower where you buy, it can still be the better buy.
 |  | |
|---|---|---|
| Lowest price today | $1,049.99 new $910.70 used | $999.99 new |
| Overview | ||
| Type | Mirrorless | Mirrorless |
| Announced | Jun 2025 | Sep 2026 (best) |
| US launch priceUS list price when announced, body only. Today's prices are in the offers table. | $1,199.99 | $999.99 |
| Lens | Interchangeable | Interchangeable |
| Sensor & image | ||
| Sensor size | Micro Four Thirds | Micro Four Thirds |
| Sensor type | Live MOS | Live MOS |
| Resolution | 20.4 MP | 20.4 MP |
| Native ISO | 200–25,600 | 200–25,600 |
| In-body stabilisation | Yes, 7.5 stops (best) | Yes, 5.5 stops |
| Speed & autofocus | ||
| Burst (mechanical) | 10 fps | — |
| Burst (electronic) | 30 fps | 30 fps |
| Fastest shutter (mech.) | 1/8,000s | — |
| Fastest shutter (elec.) | 1/32,000s | — |
| AF pointsMakers count points differently, so this is not ranked. | 121 | 121 |
| Subject detectionMakers group subjects differently (Canon's "animal" includes birds), so only having it is ranked. | Human | Human, Animal |
| Video | ||
| Max resolution | 4K | 4K |
| 4K frame rate | 30p | 30p |
| 10-bit internal | No | — |
| Internal raw video | No | No |
| Mic input | Yes | Yes |
| Headphone jack | No | No |
| Viewfinder & screen | ||
| Viewfinder | Electronic, 2.36M dots | Electronic, 2.36M dots |
| Rear screen | 3", 1.04M dots | 3", 1.04M dots |
| Screen articulation | Fully articulating | Fully articulating |
| Touchscreen | Yes | Yes |
| Body & battery | ||
| Weight (with battery) | 418 g | 393 g (best) |
| Dimensions (W×H×D) | 125.3 × 85.2 × 49.7 mm | 125.8 × 74.5 × 43.3 mm |
| Weather sealed | Yes | Yes |
| Battery (CIPA shots) | 310 | 410 (best) |
| Card slots | 1 · SD UHS-II | 1 · SD UHS-I |
| USB-C | Yes | Yes |
| Built-in flash | No | No |
| Wi-Fi / Bluetooth | Wi-Fi + Bluetooth | Wi-Fi + Bluetooth |
Green marks the better figure where “better” is unambiguous. A dash means the maker doesn't publish it or we haven't verified it yet.
Price history: is the newer one cheaper?
Low light & noise
OM-5 Mark II
3.3 µm pixels
20.4 MP on a micro four thirds sensor, ISO up to 25,600
PEN
3.3 µm pixels
20.4 MP on a micro four thirds sensor, ISO up to 25,600
Bigger pixels gather more light each, so they tend to show less noise at high ISO, but sensor design matters as much. For real noise at ISO 6400, these sites measure it:
- Photons to Photos: dynamic range vs ISO ↗Photographic dynamic range measured at every ISO, bodies on one chart
- Photons to Photos: noise vs ISO ↗Read noise at every ISO from lab tests: lower is cleaner in the shadows
- DPReview studio scene ↗The same scene shot by each camera at the ISO you pick, side by side
- DPReview reviews ↗Full reviews with high-ISO samples
- Low-light video tests ↗Real-world high-ISO footage on YouTube
Size, to scale
Front (width × height)
Top (width × depth)