OM System
OM-1
First OM System flagship with cross-type AF and 50fps burst.
$2,199
Last updated May 2026
Key specs at a glance
Resolution
20.4 MP
Sensor
MFT
ISO max
102,400
Burst
120 fps
4K
60 fps
IBIS
8-stop
Weight
599 g
Battery
520 shots
Sensor size
OM System OM-1
17.4 × 13 mm · Compact / large-type
226 mm² area
Lens ecosystem
Micro Four Thirds mount
60
First-party
70
Third-party
130+
Total available
Mount introduced 2008
Body size
OM System OM-1
135 × 92 × 73 mm
599 g (1.32 lb / 21.13 oz)
135 × 92 × 73 mm · 599 g (1.32 lb / 21.13 oz)
Best for
Use-case scores
Scored algorithmically from verified specs. 10 = best in class.
Portrait
Fair- · Eye AF locks focus on subjects reliably
- · In-body stabilization for handheld shooting
Sports & Action
Excellent- · 120fps burst — pro-level action capture
- · 1,053 AF points — dense tracking grid
Video & Hybrid
Fair- · 4K recording
- · 4K 60p smooth motion
Landscape
Limited- · Weather sealed for outdoor conditions
- · IBIS enables slower handheld shutter speeds
Travel
Good- · 599g — compact and travel-friendly
- · Weather sealed for varied conditions
Wildlife
Good- · 120fps burst captures fleeting moments
- · Weather sealed for field conditions
Vlogging
Good- · 4K 60p for smooth handheld vlogs
- · IBIS reduces handheld shake
Pros
- ✓ 50fps burst
- ✓ Great weather sealing
- ✓ Computational modes
Cons
- – MFT sensor
- – Superseded by OM-1 II
- – Smaller than FF
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Full specifications
Verified specs · OM System OM-1