Decision tools · Compare
OM-1 vs PEN
Quick take: The PEN is the most affordable.
16 specs side by side·16 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more
Verdictwhich should you buy?
OM-1 — Wildlife, Sport, Outdoor: OM System's statement camera — class-leading weather sealing and the best IBIS in the business.
Who should buy what
OM-1 (2022)
is the right camera for you if…
- Wildlife and bird photographers who need fast burst and pro weather sealing
- Outdoor photographers who work in challenging conditions
Full specificationsthe better value in each row is highlighted
| Specification | OM-1OM System · 2022 | PENOM System · 2026 |
|---|---|---|
| Price | £299Best | £849 |
| Sensor | Micro Four Thirds Live MOS stacked BSI | 20.4MP Four Thirds Live MOS |
| Resolution | 20.4MP | 20.4MP |
| Video | 4K 60fps 10-bit | 4K/C4K, OM-Log400, vertical video support |
| Autofocus | 1053-point cross-type phase-detect, AI subject recognition | Phase-hybrid AF (121 points) with subject detection (people, cats, dogs) |
| Stabilisation | 5-axis IBIS, 7.0 stops (8 stops with sync IS) | 5.5-stop IBIS |
| Burst Rate | 10fps mechanical, 50fps electronic, 120fps Pro Capture | 30fps electronicBest |
| Battery Life | 520 shots (CIPA)Best | 410 shots (CIPA) |
| Weight | 599g (body only) | 393g (with battery and card)Best |
| Dimensions | 134.8 × 91.6 × 72.7mm | — |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.83× 5.76M-dot | EVF, 2.36M dots |
| Screen | 3.0" fully articulating touchscreen, 1.62M-dot | Tilting touchscreen |
| Mount | Micro Four Thirds | Micro Four Thirds |
| Memory Cards | Dual SD UHS-II slots | Single SD (UHS-I) |
| Connectivity | Wi-Fi 5GHz, Bluetooth 5.0, USB-C 3.1, HDMI, 3.5mm mic/headphone | USB-C, Wi-Fi, Bluetooth |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
OM-1
PEN
Portrait
7.3/10
7.0/10
Street
6.5/10
7.8/10
Travel
6.4/10
7.4/10
Wedding & Events
7.6/10
6.3/10
Vlogging & Video
6.4/10
6.7/10
Filmmaking
6.6/10
5.2/10
Documentary
7.6/10
7.0/10
Sports & Action
9.2/10
7.7/10
Landscape
6.0/10
6.1/10
Wildlife
9.0/10
8.1/10
Casual
5.6/10
6.3/10
Food
7.1/10
6.9/10
Macro
8.1/10
6.8/10
Architecture
6.1/10
6.1/10
Astrophotography
5.9/10
5.9/10
Fun & simple
—
4.7/10
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →
Next
More comparisons with OM-1
Camera family history