Olympus OM System OM-1 Review
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Our editorial take on the Olympus OM System OM-1
The OM System OM-1 is a robust flagship Micro Four Thirds mirrorless camera that brings serious performance to a compact, weather-sealed body. With a 20.4-megapixel stacked sensor, 120 fps continuous shooting, and advanced subject detection covering everything from birds to helicopters, it aims squarely at wildlife and sports shooters who value portability. The IP53-rated magnesium alloy construction, dual UHS-II SD slots, and 5-axis sensor-shift stabilization round out a feature set built for demanding field work.
Video shooters get 4K 60p in 10-bit internally, plus OM-Log and external raw output options. The live ND filter is a standout feature that mimics graduated and solid neutral density effects without physical glass. Reviewers generally praise the autofocus system, build quality, and the unique advantages of the Micro Four Thirds mount for telephoto reach with lighter lenses. The camera represents a meaningful upgrade for existing Olympus users and has drawn interest from photographers considering the system for specialized use.
However, the smaller sensor inherently limits low-light performance compared to full-frame competitors, and some reviewers question whether incremental updates justify the price for those already in the ecosystem. The OM-1 fits a specific niche rather than competing head-to-head with broader hybrid flagships.
- Blazing fast 120 fps continuous shooting at full resolution
- Compact, IP53-rated magnesium body with excellent weather sealing
- Advanced subject detection across wide range of categories including wildlife
- Built-in live ND filter eliminates need for physical ND glass
- Strong 5-axis IBIS and dual SD card slots for professional reliability
- Micro Four Thirds sensor limits low-light performance versus full-frame rivals
- Premium pricing for the sensor size may be hard to justify for general use
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Overall, the OM SYSTEM OM-1 is a highly capable camera that represents a serious upgrade for Olympus/OM System users, and potentially a reason for those outside the system to consider it.
OM SYSTEM (the new brand succeeding Olympus) just announced a new OM-1 camera that features a 20.4MP Micro Four Thirds sensor with 5-axis IBIS, fast stills shooting modes, cross quad pixel autofocus, vari-angle LCD, dual SD card slots, and a durable magnesium alloy body.
The OM-1 features a 20MP Stacked BSI Live MOS and it can shoot 4K DCI and UHD in 4:2:0 10-bit up to 59.94p.
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Specs
- Battery
- 1x BLX-1 Rechargeable Lithium-Ion, Approx. 500 Shots
- Weight Grams
- 511 g
- Dimensions Mm
- 134.8 x 91.6 x 72.7 mm
- Build Material
- Magnesium Alloy
- Weather Sealing
- IP53 rated
- Bit Depth
- 10-bit
- Raw Video
- External (4:2:2/Raw 8/12-Bit up to DCI 4K)
- Log Profiles
- FLAT, HDR-HLG, OM-Log
- Internal Codecs
- H.264/MPEG-4 AVC, H.265
- Max Frame Rate 4k
- 60p
- Max Frame Rate Hd
- 1080 at 240 fps
- Max Video Bitrate
- 202 Mb/s
- Max Recording Time
- No
- Max Video Resolution
- DCI 4K
- Raw Output
- 14-bit
- Live Nd Filter
- Live GND8 and ND128 Filtering
- Vertical Video Support
- Yes
- Computational Photography
- Yes
- Sensor Size
- Four Thirds (17.4 x 13 mm)
- Sensor Type
- Stacked BSI Live MOS
- Image Processor
- TruePic X
- Effective Megapixels
- 20.4 Megapixel (5184 x 3888)
- Launch Price Usd
- 1999.99
- Iso Range Stills
- Native: 200 to 25,600 (80 to 102,400 Extended)
- Continuous Shooting
- Up to 120 fps at Maximum Resolution
- Shutter Speed Electronic
- 1/32000 to 60 Seconds
- Shutter Speed Mechanical
- 1/8000 to 60 Seconds
- Viewfinder
- Electronic (OLED), 5,760,000 Dot, 1.48x magnification
- Rear Screen
- Articulating 3" Touchscreen LCD
- Touchscreen
- Yes
- Lens Mount
- Micro Four Thirds
- Crop Factor
- 2x
- Usb
- 1x USB-C Input/Output
- Hdmi
- 1x Micro-HDMI Output
- Audio Io
- 1x 3.5 mm TRS Stereo Headphone Output, 1x 3.5 mm TRS Stereo Microphone Input
- Wireless
- Wi-Fi 5 (802.11ac) / Bluetooth 4.2
- Card Slots
- Dual Slot: SD/SDHC/SDXC (UHS-II)
- Ibis
- Sensor-Shift, 5-Axis
- Af Points
- Phase Detection: 1053
- Af System
- Cross Quad Pixel Phase-Detection AF
- Subject Detection
- Humans, Birds, Dogs, Cats, Cars, Motorcycles, Airplanes, Helicopters, Trains
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