OMSYSTEM OM-3 ASTRO Body is a dedicated Micro Four Thirds astrophotography camera designed for serious night-sky imaging, with a re-engineered IR-cut filter tuned to pass 100% of H_ rays. This helps improve the capture of red emission nebulae with enhanced spectral fidelity and colour accuracy, while the OM3 ASTRO Body also supports handheld high resolution shooting for detailed results.

Built around a 4/3 stacked BSI Live MOS sensor with approximately 20.4 million effective pixels, the OMSYSTEM OM-3 ASTRO Body combines high image quality with practical controls for astronomy and landscape work. Custom Modes C1, C2 and C3 are preconfigured for astrophotography use, with options suited to handheld high-res capture, straightforward night-sky shooting, and handheld star-scape photography. Colour Profile Control further lets you tailor celestial images for greater visual impact.

  • Dedicated astrophotography camera with 100% H_ transmission
  • Starry Sky AF for focusing on stars
  • Live Composite for star trails
  • Handheld High Res Shot composites 12 frames for a high-definition, low-noise image
  • Optional body mount filters available: Light Pollution Cut Filter (BMF-LPC01) and Soft Filter (BMF-SE01)
  • Dust, splash and freeze resistant design
  • USB charging and USB PD bus power support

The camera includes built-in 5-axis sensor-shift image stabilisation, a 2.36 million-dot OLED electronic viewfinder, and a 3.0-inch vari-angle touch monitor. Focus performance includes high-speed imager AF, cross-type phase detection AF, contrast AF, and Starry Sky AF, with subject detection for people, vehicles, aircraft, trains, birds, dogs and cats.

The OMSYSTEM OM-3 ASTRO Body records stills in JPEG, RAW and JPEG+RAW formats, supports SD, SDHC and SDXC memory cards, and offers advanced drive modes including silent sequential shooting and Pro Capture. Video options include 4K and C4K recording, OM-Log400, HLG and OM-Cinema picture modes, plus external microphone and headphone connections.

Supplied with BLX-1 Li-ion battery, CB-USB13 USB cable, shoulder strap, instruction manual and warranty card. Dimensions are approximately 139.3 mm x 88.9 mm x 45.8 mm, and body weight is approximately 413 g.

Barcode (UPC / EAN): 4545350057947

Product TypeMicro Four Thirds Interchangeable Lens System Camera
MemorySD, SDHC (UHS-I / II), SDXC (UHS-I / II) (Slot 1)
Sensor Size17.4 mm x 13.0 mm (Micro Four Thirds)
Lens MountMicro Four Thirds Mount
Image Sensor Type4/3 Stacked BSI Live MOS Sensor
Effective PixelsApprox. 20.4 million pixels
Total PixelsApprox. 22.9 million pixels
Aspect Ratio4:03
Dust ReductionSupersonic Wave Filter
Recording FormatDCF2.0, Exif3.0
File FormatJPEG, RAW(12-bit lossless compression), JPEG+RAW
RAW Image Size5184 x 3888
JPEG Image Size5184 x 3888 ~ 1024 x 768
Image Stabilization TypeBuilt-in 5-axis sensor-shift image stabilization
Image Stabilization ModeS-IS AUTO, S-IS1, S-IS2, S-IS3, OFF
In-body IS CompensationCenter 6.5 steps, corner 5.5 steps
Sync IS CompensationCenter 7.5 steps, corner 6.5 steps
Focal Length Setting11 settings: 10 programmable settings (10 lenses)
Finder TypeEye-level OLED electronic viewfinder, approx. 2.36M dots
Field of ViewApprox. 100%
Viewfinder MagnificationApprox. 1.23x - 1.37x
Eye PointApprox. 27 mm
Diopter Adjustment Range-4 ~ +2m-1
Monitor Type3.0-inch vari-angle monitor (electrostatic capacitance touch panel), Approx. 1620k dots (3:2)
AF SystemHigh-speed imager AF
AF Working Range-5.5 EV / 19 EV
Cross-type Phase Detection AF Points1,053 points
Contrast AF Points1,053 points
Focus ModesS-AF, S-AF+MF, C-AF, C-AF+MF, MF, C-AF + TR, C-AF + TR+MF, Preset MF, Starry sky AF (S-AF), Starry sky AF (S-AF+MF)
C-AF Tracking Sensitivity5 steps
Magnified Frame AF3x, 5x, 7x, 10x, 14x
Intelligent Subject Detection AFHuman, Formula cars, rally cars, motorcycles / Aircrafts, helicopters / Bullet trains, standard trains, steam locomotives / Birds / Dogs, cats
Metering SystemDigital ESP metering (324-area multi pattern metering), Center-weighted average metering, Spot metering, Spot metering with highlight/shadow control
Exposure Compensation±5 EV
AE LockLocks with a half-press of the shutter button
Mechanical Shutter1/8000 ~ 60 sec, Live Bulb, LiveTime, Live Composite
Electronic First Curtain Shutter1/320 ~ 60 sec
Electronic Shutter1/32000 ~ 60 sec
Sequential ShootingApprox. 6 fps; anti-shock approx. 5.5 fps; silent approx. 20 fps; silent SH1 approx. 120 fps; silent SH2 approx. 50 fps
Pro CaptureApprox. 20 fps; Pro Capture SH1 approx. 120 fps; Pro Capture SH2 approx. 50 fps
Flash Intensity Control MethodTTL Auto, Manual, Auto, Super FP (FP-TTL AUTO, FP-MANUAL)
Flash ModeFill-in, Flash Off, Slow sync.
Synchro Settings1st curtain, 2nd curtain selectable
Flash Sync Speed1/250 sec. or slower
Slow Limit60Ó-1/250
White Balance ModeAuto WB, 7 WB presets, 4 Capture WB, Custom WB (Kelvin setting)
Color MatrixsRGB, Adobe RGB
Picture Modei-Finish, Vivid, Natural, Flat, Portrait, Monotone, Custom, Underwater, Color Creator, Art Filters, Monochrome profile control, Color profile control
Gradation4 types (Auto, Normal, High Key, Low Key)
Art FilterPop Art, Soft Focus, Pale & Light Color, Light Tone, Grainy Film, Pin Hole, Diorama, Cross Process, Gentle Sepia, Dramatic Tone, Key Line, Water Color, Vintage, Partial Color, Bleach Bypass, Instant Film
High Res Shot Tripod JPEG80M 10368 x 7776, 50M 8160 x 6120, 25M 5760 x 4320
High Res Shot Tripod RAW10368 x 7776
High Res Shot Handheld JPEG50M 8160 x 6120, 25M 5760 x 4320
High Res Shot Handheld RAW8160 x 6120
Video Recording FormatMOV (MPEG-4AVC / H.264), YCbCr 4:2:0 (8bit); MOV (HEVC/H.265), YCbCr 4:2:0 (10bit)
Video Resolution4096 x 2160 (C4K), 3840 x 2160 (4K), 1920 x 1080 (FHD)
Digital Tele-converterApprox. 1.4x
Time Lapse Movie3840 x 2160 (4K), 1920 x 1080 (FHD), 1280 x 720 (HD)
S&Q Movie Capturing Frame Rate240fps, 200fps, 120fps, 100fps, 60fps, 50fps, 30fps, 25fps, 24fps, 15fps, 12fps, 8fps, 6fps, 3fps, 2fps, 1fps
Image Stabilization for Video RecordingM-IS1, M-IS2, OFF
Time CodeRec run / free run, drop frame / non-drop frame
Live View Output via HDMIMonitor mode / Record mode / RAW mode
Movie Picture ModeFlat, OM-Log400, HLG, OM-Cinema1, OM-Cinema2
Sound Recording FormatWave format (stereo linear PCM/16-bit, sampling frequency 48kHz)
High-Resolution Audio RecordingStereo linear PCM/24-bit, sampling frequency 96kHz
Microphone / SpeakerBuilt-in stereo microphone / built-in mono speaker
USBUSB Type-C
HDMI ConnectorMicro HDMI (type D)
Flash AttachmentHot shoe
BluetoothBuilt-in (Bluetooth Ver.4.2 Bluetooth Low Energy)
Microphone Input Jack_3.5 stereo mini jack (plug-in power on/off)
Headphone Connector_3.5 stereo mini jack
PC InterfaceUSB3.0 (Superspeed)
Battery TypeBLX-1 Li-ion battery
USB Bus PowerA USB PD bus power can be used
USB ChargingBuilt-in battery can be charged with USB
Sleep Mode1/3/5 min., off
Number of Recordable ImagesStandard mode: approx. 590 shots / Quick sleep mode: approx. 1040 shots
Movie Recording TimeCIPA standard compliant: approx. 120 minutes; when zoom and other operational functions are not used: approx. 190 minutes
Continuous Movie Recording TimeUntil card is full or battery runs out
DimensionsApprox. 139.3mm (W) x 88.9mm (H) x 45.8mm (D)
WeightBased on CIPA standards, with 1x bundled battery and 1 memory card, without eyecup: 496g; body only: 0.413 kg
Temperature-10_ ~ +40_ (when in operation), -20 ~ +60_ (when stored)
Humidity30%~90% (when in operation), 10%~90% (when stored)
Ingress ProtectionIEC Standard publication 60529 IP53
Freezeproof-10_
Included ItemsBody, CB-USB13 USB cable, Shoulder strap, Instruction manual, Warranty card, BLX-1 Li-ion battery
  • OM SYSTEM OM-3 Astro Mirrorless Camera Body Only - Silver
  • BLX-1 Li-ion Battery
  • CB-USB13 USB Cable
  • Shoulder Strap
  • Instruction Manual

Manufacturer Warranty


This product comes with a

24 month Australian warranty

from OM SYSTEM Australia

Want to read more about warranties?

Click here

Add Extra Protection for Total Peace of Mind


Protect Your Investment
  • Priority repair service
  • Extended care beyond manufacturer warranty
  • Annual health check gear specific
  • Sensor clean on selected camera packages
  • Repair or replacement for manufacturing faults T&Cs apply
Learn what's included →

Reviews

* Dispatch timeframes are indications only and may vary for multiple quantities. Timeframes are updated regularly during normal business hours.