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OM-1 vs OM-1 Mark II

Quick take: The OM-1 has the highest resolution at 20MP; the OM-1 is the most affordable.

16 specs side by side·15 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.

OM-1 Mark II — Wildlife, Birds & Outdoor Sports: OM System's most capable camera — 120fps AF burst, AI subject detection, and IP53 weather sealing make it the best-value pro wildlife camera.

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
OM-1 Mark II (2024)
is the right camera for you if…
  • Wildlife and bird photographers who need the best subject tracking in MFT
  • Sports photographers who want weather sealing and 50fps burst
  • OM-1 owners looking for a meaningful autofocus upgrade
  • Professionals who need pro-grade weather sealing in the lightest possible system
Full specificationsthe better value in each row is highlighted
Specification OM-1OM System · 2022OM-1 Mark IIOM System · 2024
Price £1,299Best£2,049
Sensor Micro Four Thirds Live MOS stacked BSI20MP Micro Four Thirds Live MOS
Resolution 20.4MPBest20.0MP
Video 4K 60fps 10-bit4K/60p, 1080p/240p, 4K HLG
Autofocus 1053-point cross-type phase-detect, AI subject recognitionAI subject detection AF (birds, animals, motorsport)
Stabilisation 5-axis IBIS, 7.0 stops (8 stops with sync IS)8.5-stop IBIS
Burst Rate 10fps mechanical, 50fps electronic, 120fps Pro Capture120fps with AF trackingBest
Battery Life 520 shots (CIPA)520 shots (CIPA)
Weight 599g (body only)599g (body only)
Dimensions 134.8 × 91.6 × 72.7mm134.8 × 91.6 × 72.7mm
Weather Sealed YesYes
Viewfinder EVF 0.83× 5.76M-dot0.83" OLED EVF, 5.76M dots, 120fps
Screen 3.0" fully articulating touchscreen, 1.62M-dot3.0" fully articulating touchscreen
Mount Micro Four ThirdsMicro Four Thirds
Memory Cards Dual SD UHS-II slotsDual SD UHS-II
Connectivity Wi-Fi 5GHz, Bluetooth 5.0, USB-C 3.1, HDMI, 3.5mm mic/headphoneUSB-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
OM-1 Mark II
Portrait
7.3/10
7.6/10
Street
6.5/10
6.6/10
Travel
6.2/10
6.4/10
Wedding & Events
7.6/10
7.9/10
Vlogging & Video
6.3/10
6.2/10
Filmmaking
6.6/10
6.8/10
Documentary
7.6/10
7.9/10
Sports & Action
9.2/10
9.3/10
Landscape
6.0/10
6.1/10
Wildlife
9.0/10
9.1/10
Casual
5.6/10
5.5/10
Food
7.1/10
7.4/10
Macro
8.1/10
8.4/10
Architecture
6.1/10
6.3/10
Astrophotography
5.9/10
6.0/10

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 →

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