OM SYSTEM E-M1 Mark III Astro Kit Compact System Camera

Astrophotography usually demands heavy tripods and complex rigs — the OM System E-M1 Mark III Astro Kit changes that. Reviewers praise it for bringing high-end celestial imaging into a truly portable form, combining Olympus’s flagship sensor technology, unmatched stabilisation, and tailored firmware tools for night-sky precision.

At its core lies a 20.4 MP Live MOS Sensor paired with the powerful TruePic IX processor, producing exceptional detail and low-noise performance. The Starry Sky AF system, unique to OM System, automatically detects and focuses on individual stars, eliminating the trial-and-error of manual focus under dark skies.

For long-exposure accuracy, the camera’s 7.5-stop 5-Axis In-Body Image Stabilisation compensates even for Earth’s subtle rotation, allowing handheld Milky Way shots that stay tack-sharp. Combine this with Live Composite and Live Time modes, and you can watch your exposure build on-screen in real time — perfect for star trails, light painting, or city-nightscapes.

The E-M1 Mark III also shines beyond astronomy. Its weather-sealed magnesium-alloy body (IPX1) resists dust, rain, and freezing temperatures (–10 °C), while weighing just 504 g, making it ideal for travel photographers or hikers who chase remote dark-sky locations.

Autofocus performance remains professional-grade thanks to the 121-point all-cross-type phase-detect AF system, capable of 18 fps continuous shooting with full tracking. For creative landscapes, the 50 MP Tripod High-Res Shot mode combines multiple exposures for ultra-high-resolution output.

Videographers aren’t left behind: the E-M1 Mark III records Cinema 4 K (4096 × 2160) at 24 p and 4 K UHD at 30 p, supported by flat OM-Log400 for dynamic colour grading.

The Astro Kit includes accessories designed for night shooting — a dedicated hot-shoe mount, cable release, and extra BLH-1 battery, ensuring extended power for long sessions under the stars.

Connectivity features include Wi-Fi and Bluetooth LE for remote control via OM Image Share, dual UHS-II SD card slots for backup, and USB-C PD charging so you can power from a portable battery while shooting.

For photographers seeking a rugged, travel-friendly astro body that performs far above its size, the OM System E-M1 Mark III Astro Kit stands as one of the most versatile compact astronomy tools available today.

IMAGING
• 20.4 MP Live MOS Sensor (Micro Four Thirds)
• TruePic IX Processor
• ISO 200 – 25 600 (expandable 64 – 25 600)
• Starry Sky AF (High/Normal modes)
• High-Res Shot: Handheld 50 MP / Tripod 80 MP

STABILISATION & SHUTTER
• 5-Axis In-Body Image Stabilisation (7.5 stops)
• Live Composite / Live Time long-exposure modes
• Shutter speed 1/32 000 s – 60 s (electronic / mechanical)

AUTOFOCUS & PERFORMANCE
• 121 cross-type phase-detect points
• Continuous shooting up to 18 fps (AF/AE tracking)
• Face/Eye Detection AF

VIDEO & DISPLAY
• C4 K (4096 × 2160) @ 24 p / UHD 4 K @ 30 p
• OM-Log400 and HLG profiles
• 3.0″ vari-angle touchscreen (1.04 M dots)
• EVF 2.36 M dots (0.74× magnification)

BODY, STORAGE & POWER
• Magnesium-alloy body, IPX1 weather-sealed (–10 °C resistant)
• Dual UHS-II SD slots
• Battery: BLH-1 Li-ion (USB-C PD charging supported)
• Dimensions: 134.1 × 90.9 × 68.9 mm
• Weight: ≈ 504 g (incl. battery + card)

CONNECTIVITY
• Wi-Fi and Bluetooth LE
• USB-C 3.0, Micro HDMI (D), Mic and Headphone jacks
• Remote cable support for long-exposure shooting

WHAT’S IN THE BOX
OM System E-M1 Mark III Camera Body (Black), Astro Accessory Kit (incl. hot-shoe mount and remote cable), Extra BLH-1 Battery, BCX-1 Charger, Body Cap, Shoulder Strap, USB-C Cable, User Manual / Warranty

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