ZWO ASI585MM-PRO USB3.0 Monochrome CMOS Camera

High Sensitivity | TEC Cooled | Versatile Performance

Your ultimate all-rounder astro camera is here—now with advanced two-stage TEC cooling. Whether you're imaging planets, the Moon, deep sky objects, or diving into the near-infrared spectrum, the ASI585MM-PRO delivers exceptional results across the board.

Versatile Performance with SONY STARVIS 2 Sensor

At the heart of the ASI585MM-PRO lies a cutting-edge 1/1.2" 4K Sony CMOS sensor (IMX585) with 2.9μm pixels and a resolution of 3840 x 2160 (8.29MP). With ultra-high sensitivity, low read noise, and rapid transmission speeds—up to 47fps at full resolution in high-speed mode—this camera punches well above its weight for beginner to intermediate astrophotographers.

Note: Product details below apply to both monochrome and colour variants (ASI585MM-PRO and ASI585MC-PRO).

Why Choose the ASI585MM-PRO?

🌌 A Single Camera for Everything

Thanks to STARVIS 2 technology, this camera excels in all areas of astrophotography—from solar and lunar imaging to deep-sky and planetary work. It's an ideal starting point for beginners seeking one camera that can do it all.

🌟 Massive Full Well Capacity

The back-illuminated sensor architecture offers a full well depth of 40ke-, nearly three times more than the previous-generation IMX485 sensor. This means better dynamic range, reduced risk of overexposure in bright regions, and excellent light collection for faint targets.

🌒 Zero Amp Glow – Clean Imaging Every Time

Enjoy completely amp-glow-free dark frames, no matter the exposure length or gain. This hardware-level feature ensures smooth, clean astrophotographs—even during long exposures.

🧠 512MB DDR3 Buffer for Smooth Data Handling

Integrated DDR3 memory ensures reliable data transfer with minimal frame drop or glitches—ideal for capturing high-speed sequences or long-exposure deep-sky stacks.

⚡ USB 3.0 + USB 2.0 HUB

• USB 3.0: High-bandwidth interface supports full-resolution capture at 47fps.

• USB 2.0 Hub: Connect and power accessories like filter wheels (EFW), electronic focusers (EAF), or guide cameras directly from your ASI585.

Powerful Two-Stage TEC Cooling System

Equipped with advanced two-stage TEC (Thermoelectric Cooling), the ASI585MM-PRO can reduce sensor temperature by more than 35°C below ambient. This significantly lowers dark current and noise levels, making it perfect for long-exposure astrophotography under any sky.

Recommended power supply: 12V DC, 3A–5A (5.5x2.1mm, centre positive).
Avoid using out-of-range voltage to prevent damage.

Camera Performance at a Glance

• HCG Mode: Activates automatically at Gain 252, reducing read noise to just 0.7e- while preserving high dynamic range (≈11 stops).

• Quantum Efficiency (QE): Peaks at an impressive 91%, capturing maximum light from your target.

• Dark Current Suppression: Consistently low dark current across a range of sensor temperatures from -20°C to +30°C.

Back Focus & Mechanical Layout

The ASI585MM-PRO is designed with a standard 55mm back focus, making it compatible with a wide range of imaging setups and accessories. Detailed mechanical drawings and back focus diagrams ensure seamless integration into your telescope rig.