OM System

OM System OM-1 Mark II

2024 · 20.4 MP · Four Thirds (17.3 x 13 mm) · 599 g · C4K 60p (4096 x 2160)

OM System OM-1 Mark II
Photo: Henry Söderlund / Wikimedia Commons, CC BY 2.0

The OM System OM-1 Mark II is a Micro Four Thirds camera for wildlife, bird and outdoor photographers who work in bad weather and want light telephoto kits. Its key strengths are IP53-rated weather sealing, in-body stabilisation rated at up to 8.5 stops, and bursts of up to 50 fps with continuous autofocus (120 fps with focus locked). Autofocus uses 1,053 cross-type phase-detection points, and video reaches C4K at 60p, in a 599 g body. Compared with the original OM-1, it adds 1.5 stops of rated stabilisation and a larger burst buffer.

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General
Brand OM System
Model OM-1 Mark II
Year 2024
Body
Dimensions 138.8 x 91.6 x 72.7 mm
Weight 599 g
Weather sealing IP53 dust and splash resistant
Sensor
Sensor type CMOS
Sensor size Four Thirds (17.3 x 13 mm)
Sensor resolution 5208 x 3916
Crop factor 2.0
Total megapixels 22.9
Effective megapixels 20.4
Image
Max. image resolution 5184 x 3888
ISO Auto, 80-25600 (extends to 102400)
Exposure & Shutter
Min. shutter speed 60 sec
Max. shutter speed 1/32000 sec
Metering Multi, Center-weighted, Highlight, Spot
Exposure compensation ±5 EV (in 1/3 EV, 1/2 EV, 1 EV steps)
Aperture priority Yes
Shutter priority Yes
White balance presets 6.0
Autofocus & Drive
Autofocus type Phase detection + contrast detection
AF phase-detection points 1,053 (all cross-type)
Max burst (electronic shutter) 120 fps (S-AF), 50 fps (C-AF)
Stabilization
In-body stabilization (IBIS) Yes, 5-axis sensor shift
Rated stops Up to 8.5 stops
Video
Max. video mode C4K 60p (4096 x 2160)
Display & Viewfinder
Screen size 3"
Screen resolution 1,620,000 dots
Viewfinder Electronic
Storage & Connectivity
Storage types SD/SDHC/SDXC (UHS-II)
USB USB 3.0 (5 GBit/sec)
Power
Battery BLX-1 Lithium-Ion battery
CIPA rated shots 520 shots