OM System Launches OM‑3 Astro as a Made‑to‑Order Camera Built for Astrophotography
OM System has officially announced the OM‑3 Astro, a Micro Four Thirds mirrorless camera purpose‑built for astrophotography and night‑sky imaging. Designed specifically for capturing star fields, nebulae, and deep‑sky subjects, the OM‑3 Astro will be produced on a made‑to‑order basis and is scheduled to go on sale on February 27, 2026. Pre‑orders are now open through the OM System official online store.
Based on the OM‑3 platform, the OM‑3 Astro is positioned as a dedicated astro variant rather than a cosmetic special edition. Its most significant modification lies in the camera’s optical stack: OM System has re‑tuned the infrared cut filter in front of the sensor to astrophotography‑specific specifications, optimizing transmission for hydrogen‑alpha wavelengths. This adjustment enables richer color reproduction and finer tonal gradation when photographing red emission nebulae—an area where standard cameras often fall short.
Sensor, processing, and astro‑specific shooting modes
At its core, the OM‑3 Astro features a 20.4‑megapixel 4/3” stacked BSI Live MOS sensor paired with the TruePic X image processor. The camera lists 100% Hα transmission, underscoring its focus on deep‑sky subjects dominated by hydrogen‑alpha emission.
OM System has also preconfigured three dedicated astrophotography custom modes on the mode dial:
- C1: High‑precision astrophotography mode for advanced users
- C2: Simplified night‑sky shooting for beginners
- C3: Handheld star‑scape photography
In addition, a dedicated Handheld High‑Res Shot (Astro) mode composites 12 frames into a single high‑resolution, low‑noise image with one press of the shutter, reducing reliance on external stacking workflows.
Computational photography and system flexibility
The OM‑3 Astro benefits from OM System’s established computational photography tools, including Live Composite, Live Bulb, and advanced stacking functions. When combined with optional rear‑mounted filter solutions and the extensive M.ZUIKO DIGITAL lens lineup, the system supports a wide range of astrophotography styles—from casual star‑scape shooting to more specialized nebula and deep‑sky work.
This system‑level flexibility allows photographers to move seamlessly between wide‑field night landscapes, constellation imaging, and more technical astro compositions without changing platforms.
Weather sealing and field durability
Designed for real‑world night‑sky shooting, the OM‑3 Astro features IP53‑certified weather sealing, offering protection against dust, rain, and cold conditions. This level of sealing allows photographers to continue shooting stars, nebulae, and transient celestial events in unpredictable environments, whether working in remote locations or under changing weather during long overnight sessions.
USB‑C power for extended astro sessions
For extended astrophotography work, the OM‑3 Astro supports USB‑C Power Delivery (PD), allowing the camera to be powered and charged directly from a compatible power bank. This enables uninterrupted shooting during long nights in the field, reducing reliance on spare batteries and making the camera better suited for time‑consuming star‑scape and deep‑sky imaging sessions.
Pricing and availability
The OM System OM‑3 Astro is priced at $2,499.99 USD (body‑only) in the United States.
The camera follows a made‑to‑order production model and is scheduled to begin shipping on February 27, 2026. Pre‑orders are currently open through OM System and authorized retailers.
For photographers deeply invested in night‑sky and nebula imaging, the OM‑3 Astro stands out as one of the few modern mirrorless cameras designed from the ground up with astrophotography as its primary mission.
Key Specifications
| Feature | Details |
|---|---|
| Camera Type | Mirrorless interchangeable‑lens camera |
| Mount | Micro Four Thirds |
| Format | Micro Four Thirds |
| Sensor | 4/3” Stacked BSI Live MOS |
| Effective Resolution | 20.4 megapixels |
| Hα Transmission | 100% (astro‑optimized IR‑cut filter) |
| Image Processor | TruePic X |
| ISO Range | Auto / Manual up to ISO 102400 (default upper ISO 25600) |
| Image Stabilization | 5‑axis sensor‑shift IBIS, up to 6.5 EV (body) / 7.5 EV (Sync IS) |
| Autofocus System | 1053‑point cross‑type phase‑detection AF + contrast AF |
| Low‑Light AF Sensitivity | Down to ‑8 EV (with f/1.2 lens, ISO 100 equivalent) |
| Astro Shooting Modes | Dedicated C1 / C2 / C3 astrophotography presets |
| High‑Resolution Mode | Handheld High‑Res Shot (Astro), 12‑shot composite |
| Computational Features | Live Composite, Live Bulb, stacking functions |
| Viewfinder | OLED EVF, 2.36M dots |
| Rear Display | 3.0” vari‑angle touchscreen, 1.62M dots |
| Video Recording | 4K / C4K up to 60p, OM‑Log400, HDMI 12‑bit RAW output |
| Weather Sealing | IP53 dust‑ and splash‑resistant (lens dependent) |
| Power & Charging | USB‑C Power Delivery (PD), external power supported |
| Weight | 496g (with battery and memory card) |