ZWO ASI 585 MC Color Astro Camera – uncooled astrophotography
The ZWO ASI 585 MC Color Astro Camera is a sensitive color camera with high resolution for lunar, planetary and many deep-sky targets. It is a good choice whenever high frame rates, a steady image and straightforward operation are more important than active cooling.
What is this camera suited for?
With its Sony IMX585 / ASI 585, it is designed for the Moon, planets, solar imaging with a suitable filter, EAA and deep-sky imaging. The uncooled design keeps the camera compact and quick to set up. For long deep-sky exposures, a cooled camera is usually preferable; for the Moon, planets, guiding and many EAA applications, this model is especially practical.
Key features
| Series / sensor | Sony IMX585 / ASI 585 |
|---|---|
| Camera type | Color |
| Cooling | uncooled, passive heat dissipation |
| Typical applications | Moon, planets, solar imaging with filter, EAA and deep-sky imaging |
| Connection | USB camera with autoguider/ST4 support depending on model |
The camera works with the relevant ZWO software and common capture applications. For solar imaging, use it only with a suitable solar filter mounted in front of the telescope.
CMOS sensor in detail
The Sony IMX585 is a modern back-illuminated CMOS sensor with high sensitivity and comparatively large pixels. The ASI 585 MC therefore delivers clean, detailed color images even with short exposures and is particularly well suited to the Moon, planets, EAA and smaller deep-sky objects.
Sensor specifications
| Sensor | Sony IMX585 Color CMOS |
|---|---|
| Sensor format | 1/1.2 inch; 11.2 × 6,3 mm |
| Resolution | 3840 × 2160 pixels / 8.29 MP |
| Pixel size | 2.9 µm |
| ADC / read noise | 12 bit / approx. 0.7 e⁻ |
| Quantum efficiency | approx. 91 % |
| Full-well capacity | approx. 40 ke⁻ |
| Frame rate | up to 46.9 fps |
| Connection | USB 3.0 |
| Shutter | rolling shutter |
These figures help when choosing the right focal length and imaging method. Especially with small pixels, the actual level of detail depends on the combination of telescope, seeing and image scale. For solar imaging, always use a suitable solar filter mounted in front of the telescope.
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