ZWO ASI585MM Pro Monochrome Astronomy Camera

Description

ZWO ASI585MM Pro Monochrome Astronomy Camera

Cooled. Clean. Monochrome Mastery.

For astrophotographers ready to level up from color capture or entry-level sensors, the ZWO ASI585MM Pro delivers serious performance in a cooled, zero amp glow package. With a modern back-illuminated Sony sensor, whisper-quiet cooling, and full-frame download speeds of nearly 50 fps, this camera is a rare blend of deep-sky finesse and high-speed planetary potential.

At its core is the Sony IMX585 monochrome CMOS chipan upgrade to the beloved IMX485, now refined with even greater low-light sensitivity and cleaner signal thanks to STARVIS 2 technology. With an 8.3-megapixel resolution and 2.9-micron pixels, the ASI585MM Pro pulls fine details from galaxies, nebulae, and lunar landscapes with equal clarity. The 1/1.2″ sensor size offers a generous field of viewnoticeably wider than typical planetary camerasgiving you breathing room for framing and cropping flexibility.

And then theres the silence. Not literal silence, but the kind that comes from a clean signalno amp glow. None. Zero. No more corner artifacts to process out of your long-exposure stacks. Combined with the cameras high full well depth of 40,000 electrons and a read noise floor as low as 0.7 electrons, you get smooth, dynamic data that stretches beautifully without blotchy gradients or crushed blacks.

Long exposure shooters will appreciate the two-stage thermoelectric cooling system, which drops the sensor temperature over 35C below ambient to suppress thermal noise. Thats a game-changer on warm summer nights or during multi-hour integrations with narrowband filters. A built-in dew heater around the AR-coated protective window helps keep frost and fog at bay when the temperature drops.

This camera is also a speed demon. With USB 3.0 and an integrated 512MB DDR3 memory buffer, the ASI585MM Pro can deliver full-resolution video at up to 47 frames per second. Thats fast enough to freeze the fleeting moments of sharp seeing during lunar and planetary imagingand fast enough to try your hand at lucky imaging on brighter deep-sky objects too.

Power, Ports & Spacing

On the back of the ASI585MM Pro, youll find one USB 3.0 port and two USB 2.0 ports. The USB 3.0 port provides high-speed data transfer with a bandwidth of 5Gbps, ensuring smooth, stable communication with your imaging software. The two USB 2.0 ports act as a powered hub for accessories like an electronic focuser or autoguiderkeeping your cable clutter tidy and centralized.

ZWO includes a USB 3.0 cable for your main data connection, along with two USB 2.0 cables to get your accessories up and running. To activate the cooling system, youll need a 12V DC power supply with a 5.5 x 2.1mm center-positive barrel connector. (ZWOs standard configuration does not include this cable, but it is widely availableand we recommend a regulated 12V 5A adapter for reliable performance.)

Worried about backfocus? ZWO makes it easy. The ASI585MM Pro comes with the necessary adapters and spacers to achieve the standard 55mm of backfocus from the sensor to your imaging traina must for proper spacing with field flatteners, reducers, or filter drawers. The included mechanical parts also make it simple to integrate other ZWO accessories like their OAG or 1.25″/2″ filter drawers.

Its a modular, camera-first approach to system buildingand it works.

Key Features

• Sony IMX585 Monochrome Sensor
  1/1.2″ back-illuminated CMOS chip with STARVIS 2 architecture, optimized for high sensitivity and low noise.

• High Resolution
  8.29 megapixels (3840 x 2160) with 2.9m pixel sizeideal for short focal lengths and fine planetary detail.

• Zero Amp Glow
  Clean dark frames, even during multi-minute exposures. No need to battle corner artifacts in post-processing.

• Deep Full Well Depth
  Holds up to 40,000 electrons per pixel, preserving bright stars and nebulosity without clipping highlights.

• Extremely Low Read Noise
  Down to 0.7e at high gain, allowing short exposures or video work with minimal background noise.

• Regulated Cooling
  Two-stage TEC (thermoelectric cooling) drops sensor temperature over 35C below ambient.

• Fast Frame Rate
  Up to 47 frames per second at full resolution via USB 3.0. Ideal for planetary and lunar imaging.

• 512MB DDR3 Memory Buffer
  Ensures fast, reliable downloadseven during high-speed video capture or large frame downloads.

• Integrated USB 2.0 Hub
  Lets you power and control two accessories directly from the cameraless clutter, more convenience.

• Built-in Dew Heater
  Gentle warmth around the sensor window prevents fogging in high humidity conditions.

Observing Tip

The ASI585MM Pros high sensitivity and low read noise make it a fantastic camera for dual-purpose imaging. You can start your evening with high-speed planetary workcapturing Jupiter, Saturn, or lunar detailthen transition to deep sky once the targets rise. With regulated cooling and clean mono signal, youll get serious data on both ends of the spectrum.

Final Thoughts

The ZWO ASI585MM Pro is the kind of camera that adapts to you. Whether youre imaging galaxies at f/5 or catching surface detail on the Moon at f/15, it delivers crisp, noise-free results with minimal fuss. Add a filter wheel and a set of quality filters, and youre not just imagingyoure mastering the light.

Tech Details:

• Sensor: Sony IMX585 Monochrome CMOS

• Sensor Size: 11.13mm x 6.26mm (1/1.2″ diagonal)

• Resolution: 3840 x 2160 (8.29MP)

• Pixel Size: 2.9m

• Full Well Capacity: 40,000 electrons

• Read Noise: As low as 0.7e

• Peak QE: ~91%

• Cooling: 2-stage TEC, T >35C below ambient

• Interface: USB 3.0 + two USB 2.0 accessory ports

• Memory Buffer: 512MB DDR3

• Power Requirements: 12V DC, 3A (not included)

• Weight: 410g (0.9 lbs)