OM-3 ASTRO
OM-3 ASTRO
OM-3 ASTRO at a glance.
Experience creative freedom redefined under open skies. The OM SYSTEM OM-3 ASTRO is a dedicated astrophotography camera designed to push beyond daylight, capturing stars, galaxies, red nebulas, and nightscapes with confidence and precision. From glowing horizons to silent, remote dark skies, it lets you explore the universe and your creativity, wherever the night takes you.
IR-cut filter for capturing Hα rays
IP53-certified weather-sealing
-10 ºc freezeproof
Up to 7.5 stops 5-axis sync IS
Computational Photography button
Custom modes optimized for starry sky photography
4K video and vertical recording
Starry Sky AF and Live Composite
High Res Shot Mode
USB-C charging
20MP Stacked BSI Live MOS sensor
A dedicated IR cut filter tuned for Hα wavelengths, combined with powerful TruePic™ X processing, reveals vivid red nebulae and fine celestial detail, delivering stunning image quality from wide starscapes to deep-sky scenes.
Preconfigured custom modes and dedicated color profiles make capturing the night sky effortless. From red nebulae to starry landscapes, optimized stacking, Starry Sky AF, and astro-tuned color deliver impressive results—beautifully rendered straight out of the camera.
When Handheld High Res Shot is activated with the camera mounted on a tripod or equatorial mount, multiple exposures are combined into a 50MP image. Intelligent image alignment reduces noise and corrects star motion and tracking errors for crisp, high-resolution astrophotography.
Shot with OM-3
M.Zuiko Digital ED 75mm F1.8
40sec | F2.8 | ISO3200
Handlheld High Res Shot
Equatorial mount used
Shot with OM-3 ASTRO
M.Zuiko Digital ED 75mm F1.8
40sec | F2.8 | ISO3200
Handlheld High Res Shot
Equatorial mount used
Paint the night with stars, lightning, or light trails. Live Composite stacks only new light, allowing you to watch your masterpiece build in real time—without overexposure.
A skill that takes years to master, now behind one button. Starry Sky AF locks sharp focus on stars, so you can capture stunning astro shots with ease.
Preserve your night vision during moonlit hikes or stargazing with a live view that remains visible in low light, allowing for stealthy shooting without disrupting your vision.
Shoot the night sky anywhere, anytime. With IP53-certified protection against dust, rain, and cold, your camera is ready to capture stars, nebulae, and celestial events in any conditions.
Weighing under 500g, this camera is perfectly designed for night-sky photography—easy to carry to remote locations and built to capture the stars with precision and clarity.
Keep your OM-3 ASTRO powered through long nights under the stars. With USB-C PD charging, you can connect a power bank and continue shooting without interruption—perfect for extended astrophotography sessions in the field.
Capture the stars like never before with powerful in-camera features
Shooting with Handheld High Res Shot when the camera is mounted on a tripod will produce composite images in which the diurnal motion of the stars is corrected.
Capture the motion of stars and planets, entirely in-camera. Produce smooth night-sky timelapses ready to export in stunning 4K resolution.
Create vibrant night skies with preset color modes on the creative dial, designed for astrophotography. Easily apply optimal settings for red nebulae or starry landscapes, adjust saturation, highlights, and shadows, and save your favorite profiles.
Wirelessly control your camera via Bluetooth using the RM-WR2 for precise, stable night-sky photography.
Wireless remote control, camera live view on your mobile device screen, and browsing and importing images—even with the camera in your backpack. The OI.Share app does it all.
M.Zuiko Digital ED 300mm F4.0 IS PRO
60sec | F4 | ISO6400
Handlheld High Res Shot
Equatorial mount used
M.Zuiko Digital ED 300mm F4.0 IS PRO
60sec | F4 | ISO6400
Handlheld High Res Shot
Equatorial mount used
Why photographers love the OM-3 ASTRO
Reduces artificial light interference, preserving true nebula and constellation colors for cleaner night-sky images.
The Soft Filter enhances point light sources, enlarging and blurring stars to emphasize their color and presence while preserving optical resolution.
Technical specifications

- Processor TruePic™ X
- Effective Resolution (approx.) 20.4 MP
- AF System Cross-type phase detection AF (1,053 points), Contrast AF (1,053 points)
- Image Stabilisation Built-in 5-axis Up to 7.5 EV steps
- Monitor 3.0-inch vari-angle monitor (electrostatic capacitance touch panel), Approx. 1620k dots (3:2)
- Processor TruePic™ X
- Effective Resolution (approx.) 20.4 MP
- AF System Cross-type phase detection AF (1,053 points), Contrast AF (1,053 points)
- Image Stabilisation Built-in 5-axis Up to 7.5 EV steps
- Monitor 3.0-inch vari-angle monitor (electrostatic capacitance touch panel), Approx. 1620k dots (3:2)
- Specifications
- Vulnerability Support Period
- Basic Information
- Further Details See our Product security page
- Technical Specifications
- Processor TruePic™ X
- Effective Resolution (approx.) 20.4 MP
- AF System Cross-type phase detection AF (1,053 points), Contrast AF (1,053 points)
- Image Stabilisation Built-in 5-axis Up to 7.5 EV steps
- Construction Magnesium / Aluminium
- ISO Sensitivity AUTO ISO: Customisable,LOW (approx.80) ‐ 102400 (Default: 200 - 25600) Manual ISO: LOW (approx.80, approx.100), 200 - 102400 (adjustable in 1/3, 1/2 or 1 EV steps)
- Sequential Shooting SH1: 120fps, 100fps, 60fps, 30fps | Mechanical Shutter: 6fps C-AF & AE Tracking (RAW) | Electronic Shutter: 120fps S-AF (RAW)
- Top Shutter Speed Mechanical: 1/8000 sec | Electronic (Silent): 1/32000 sec
- RAW Capture Yes (12-bit lossless compression)
- Video Recording C4K: 60p, 50p, 30p, 25p, 24p | 4K: 60p, 50p, 30p, 25p, 24p | Full HD: 60p, 50p, 30p, 25p, 24p | High Speed Movie: 1920x1080 (FHD) / 240fps, 200fps, 120fps, 100fps, 100fps
- Video Quality 4K, C4K, Full HD, High Speed Movie FHD
- Flash Compatible with all OM SYSTEM / Olympus Flashes
- Viewfinder Resolution Magnification / Coverage Eye-level OLED electronic viewfinder, approx. 2.36M dots
- Monitor 3.0-inch vari-angle monitor (electrostatic capacitance touch panel), Approx. 1620k dots (3:2)
- WiFi Function Yes
- GPS Yes (Smartphone connection)
- Technology Innovation AE Bracketing, Focus Bracketing, Handheld Hi-Res, HDR, Intelligent Subject Detection, Keystone Compensation, Live Composite, Live ND, Live Time, Multi Exposure, Silent, Tripod Hi-Res
- Weatherproof Dustproof, Freezeproof, Splashproof
- Microphone Built-in Stereo φ3.5 stereo mini jack for external
- USB Charging Yes
- USB PD bus power Yes
- Dimensions Approx. 139.3mm (W) x 88.9mm (H) x 45.8mm (D) *Based on CIPA standards: excludes protrusions
- Weight (body only) 413g
- Box Contents OM-3 Camera Body, CB-USB13 USB cable, Shoulder strap, Instruction manual, Warranty card, BLX-1 Li-ion battery
- Warranty (Months) 24 months
OM-3 ASTRO compatible accessories
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