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Main pageCatalogueAstrophotographyZWO astronomy productsZWO ASI585MM Mono USB3.0 astro camera - Sensor D=12.84 mm, 2.9 µm pixel size
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ZWO ASI585MM Mono USB3.0 astro camera - Sensor D=12.84 mm, 2.9 µm pixel size
The monochrome camera offers a large sensor, high sensitivity, resolution and frame rate. It is ideal for planets, but also for the sun, moon and even deep sky.
Sensor: 1/1.2" CMOS IMX585 with 8.29 megapixel resolution Sensor size: 6.26 mm x 11.13 mm - Diagonal: 12.84 mm Very high resolution: 3840 x 2160 pixels with 2.9 µm size Approx. 91 % QE - high sensitivity for short exposure times Also suitable for EAA due to high frame rate of 47 fps Full well capacity 40 ke- Starvis 2 technology with back illumination USB 3.0 for fast image download 12 bit ADC No amplifier glow (amp glow) Passive cooling with heat dissipation to prevent the sensor from heating up during long exposures Good suitability for deep sky imaging AR protection filter built in with full transmission also in the infrared Including ST4-level autoguiding interface
lunar and planetary photography with high detail resolution. solar photography (with suitable filter) with high detail resolution long time exposures of nebulae and galaxies without power consuming cooling infrared photography to reduce the influence of seeing, thus sharper luminance channel autoguiding camera (autoguiding port is available) EAA (electronically assisted astronomy) on planets, moon and sun
This camera is an alternative to DSLR and mirrorless system cameras for deep sky photography
Even the raw images are high quality, as the sensor shows no more amplifier glow and the images are very smooth.
Lunar and planetary photography
Due to the fine 2.9 µm pixels, you achieve a very high resolution already from f/10, which makes the use of Barlow and converter systems unnecessary.
EAA (electronically assisted astronomy)
The high resolution, combined with a high frame rate of 47 fps at full resolution (RAW8 format), allows real-time observation not only of planets, but also of the Moon and Sun because of the relatively large sensor. Just observe together in a group - without long waiting for everyone´s turn!
Use as autoguider
The ASI585MM is a lightweight with only 126 grams. It puts hardly any strain on the focuser. Of course, the camera offers the ST-4 autoguiding interface. A 2 metres long autoguiding cable is also included.
AR-coated clear glass filter protects the sensor from dust
The clear glass filter prevents dust from getting to the sensor. It also lets UV and infrared through, so you can also do infrared photography with the camera. You have full control over what light hits the sensor with the right choice of contrast filters, nebula filters, IR pass filters, or UV/IR blocking filters.
Air cooling - reduces sensor temperature}
The sensor heats up during the exposures. The PCS dissipates heat from the sensor via a heat conducting pad. The sensor temperature is thus reduced by up to 15 degrees Celsius compared to cameras without PCS.
Very high sensitivity for short exposure times
One advantage of the back-illuminated CMOS sensor is the lower readout noise and improved sensitivity. In particular, Sony uses STARVIS-2 technology in the IMX585 sensor, which provides excellent low-light visibility. You can achieve a very high light output in astro imaging and realize high image quality not only in visible light, but also in the near infrared range (to reduce seeing). In addition, the low readout noise and the high full-well capacity ensure a higher dynamic range.
Combined with the wide field of view offered by the large sensor format, the ASI585MM is not only ideal for solar, lunar and planetary imaging, but can also be used as a live streaming camera or as an all-sky camera for observing or monitoring weather conditions, and of course for imaging faint nebulae, star clusters and galaxies.
The low noise and anti-ampglow circuitry make this not! Peltier-cooled camera interesting for capturing deep-sky objects such as faint nebulae, star clusters and galaxies.
The HCG mode
The camera has a built-in HCG mode that can effectively reduce readout noise at high gain and maintain the same wide dynamic range that you would expect at low gain. When the gain is 252, the HCG mode will turn on automatically. This results in readout noise as low as 2.5 e- while the dynamic range can still reach nearly 12 f-stops.
Downloads, drivers
ZWO provides software and drivers online for free download.
Software and drivers for all ZWO cameras
ASI camera 2" cover 1.25" nosepiece 1.25" cover USB 3.0 cable ST4 cable Quick Start Guide
EN- Safety instructions
Not suitable for children under 3 years of age.
Packaging not suitable for consumption.
Keep packaging out of reach of children. Risk of suffocation!
Never look at the sun with a telescope or binoculars. Risk of blindness!
Children should only use telescopes and binoculars in the presence of an adult.
ZWO ASI585MM Mono USB3.0 Astro Camera with passive Air-Cooling - Sensor D=12.84 mm
This camera is equipped with a 1/1.2" sensor with 3840*2160 pixels (4K UHD). The modern Sony IMX585 sensor convinces especially by the high resolution (2.9 µm pixels), the high frame rate and by the complete absence of the annoying amplifier glow. This makes this camera very interesting not only for planets, sun and moon, but also for long exposures (deep sky photography). The sensor is large enough for many deep-sky objects, nevertheless one gets along mostly without corrector. The camera is very well suited for:This camera is an alternative to DSLR and mirrorless system cameras for deep sky photography
Even the raw images are high quality, as the sensor shows no more amplifier glow and the images are very smooth.
Lunar and planetary photography
Due to the fine 2.9 µm pixels, you achieve a very high resolution already from f/10, which makes the use of Barlow and converter systems unnecessary.
EAA (electronically assisted astronomy)
The high resolution, combined with a high frame rate of 47 fps at full resolution (RAW8 format), allows real-time observation not only of planets, but also of the Moon and Sun because of the relatively large sensor. Just observe together in a group - without long waiting for everyone´s turn!
Use as autoguider
The ASI585MM is a lightweight with only 126 grams. It puts hardly any strain on the focuser. Of course, the camera offers the ST-4 autoguiding interface. A 2 metres long autoguiding cable is also included.
AR-coated clear glass filter protects the sensor from dust
The clear glass filter prevents dust from getting to the sensor. It also lets UV and infrared through, so you can also do infrared photography with the camera. You have full control over what light hits the sensor with the right choice of contrast filters, nebula filters, IR pass filters, or UV/IR blocking filters.
Air cooling - reduces sensor temperature}
The sensor heats up during the exposures. The PCS dissipates heat from the sensor via a heat conducting pad. The sensor temperature is thus reduced by up to 15 degrees Celsius compared to cameras without PCS.
Very high sensitivity for short exposure times
One advantage of the back-illuminated CMOS sensor is the lower readout noise and improved sensitivity. In particular, Sony uses STARVIS-2 technology in the IMX585 sensor, which provides excellent low-light visibility. You can achieve a very high light output in astro imaging and realize high image quality not only in visible light, but also in the near infrared range (to reduce seeing). In addition, the low readout noise and the high full-well capacity ensure a higher dynamic range.
Combined with the wide field of view offered by the large sensor format, the ASI585MM is not only ideal for solar, lunar and planetary imaging, but can also be used as a live streaming camera or as an all-sky camera for observing or monitoring weather conditions, and of course for imaging faint nebulae, star clusters and galaxies.
The low noise and anti-ampglow circuitry make this not! Peltier-cooled camera interesting for capturing deep-sky objects such as faint nebulae, star clusters and galaxies.
The HCG mode
The camera has a built-in HCG mode that can effectively reduce readout noise at high gain and maintain the same wide dynamic range that you would expect at low gain. When the gain is 252, the HCG mode will turn on automatically. This results in readout noise as low as 2.5 e- while the dynamic range can still reach nearly 12 f-stops.
Downloads, drivers
ZWO provides software and drivers online for free download.
Software and drivers for all ZWO cameras
| Sensor: | Sony 1/1.2" CMOS IMX585 (monochrom) |
| Resolution: | 3840 x 2160 pixels, 8.28 megapixels |
| Pixel size: | 2.9 µm |
| Sensor size: | 11.13 mm x 6.26 mm |
| Sensor diagonal: | 12.84 mm |
| Exposure time: | from 32 µs - 2000 s |
| Capture speed: | up to 46.9 fps at 4K UHD resolution |
| ROI: | Supported |
| Quantum efficiency: | 91% |
| ADC: | 12 bit |
| Full well: | 40 ke- |
| Anti amp glow circuit: | Yes |
| Readout noise: | 0.8 e- to 12 e- |
| ST4 guider port: | Yes |
| Distance from T2 female thread to sensor: | 17.5 mm |
| Distance from T2 male thread: | 6.5 mm (the male thread does not count) |
| Shutter type: | Rolling shutter |
| Protection window: | AR dust protection window (UV and IR light are transmitted) |
| Connection: | USB3.0/USB2.0 |
| Bit resolution: | 12 bit output (12 bit ADC) |
| Telescope connection: | 2" / 1.25" / M42x0.75 |
| Dimensions: | D 62 mm x 36 mm resp. D 62 mm x 43 mm |
| Operating temperature: | -5 °C to +50 °C |
| System requirements: | USB 3.0 should be supported by the operating system - Windows 8 or higher, Mac OS X 10.8 or higher, Linux kernel 2.6.31 (Ubuntu 16.04 or higher) |
| Weight: | 126 g |
EN- Safety instructions
Not suitable for children under 3 years of age.
Packaging not suitable for consumption.
Keep packaging out of reach of children. Risk of suffocation!
Never look at the sun with a telescope or binoculars. Risk of blindness!
Children should only use telescopes and binoculars in the presence of an adult.
This Product was added to our catalogue on 15/05/2025.
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