The ZWO ASI585MC uses Sony’s advanced IMX585 CMOS sensor, making it one of ZWO’s most powerful one-shot colour planetary cameras to date. Designed for deep sky astrophotography, this ASI585 series camera  boasts a large 1/1.2" sensor format, a high resolution of 3840×2160 (8.29 megapixels), and—remarkably—produces zero amp glow. With 2.9μm square pixels and support for 12-bit mode, the ASI 585MC camera can deliver up to 46.9 frames per second with exceptionally low readout noise.

Full Specifications

Type	Colour
Sensor Type	IMX585
Sensor Size	11.2x6.3mm
Pixel Size	2.9 μm
Read Noise	0.8e
Resolution	8.29 MP (3840x2160)
Max Framerate	46.9 FPS
Zero Amp Glow?	Yes
Delta T	N/A
Memory Buffer	256GB DDR3
Shutter	Rolling Shutter
QE Peak	91%
Full Well	40,000e
Back Focus	6.5mm / 17.5mm
ADC	12-bit
Exposure Range	32μs-2000s
USB	3.0
Adapter	M42 X 0.75
Weight	126g

 

The Sensor

While it shares the same pixel size as the ASI462MC, the ASI585MC delivers four times the resolution. Its sensor dimensions measure 11.13mm × 6.26mm with a 12.84mm diagonal, making it ideal for high-resolution lunar and solar imaging. It's also an excellent choice for use as an all-sky vewing or live-view camera to monitor weather conditions, meteors, and cloud movement.

STARVIS 2

ASI585MC adopts the Latest SONY IMX585 sensor with STARVIS 2 technology. Featuring zero amp glow, lower dark current noise, and 3 times larger full well capacity, this camera is regarded as an upgrade of ASI485MC. It is also more sensitive to red, green and near infrared (NIR) lights compared to ASI485MC, especially in >850nm wavelength range, its light sensitivity is 1.5x greater than ASI485MC.

 

 

 

 

Upgraded Design

With significant enhancements over the ASI485MC—including better sensitivity, larger full well capacity, and support for higher resolutions—the ASI585MC is a vast improvement for astrophotographers wanting clean, high-detail planetary and sky views without the drawbacks of amp glow or limited dynamic range.

 

Large Full Well Depth & Low Read Noise

With its back-illuminated sensor and advanced pixel design, the ASI585MC offers exceptionally low readout noise and a high full well capacity. This makes it particularly effective in low-light conditions, capturing sharp, detailed images of faint celestial targets.

 

Optimised Camera Performance

The camera features a built-in HCG (High Conversion Gain) mode, which activates automatically at a gain setting of 252. This mode significantly reduces readout noise while preserving a wide dynamic range—close to true 12-bit performance. In HCG mode, the readout noise drops to as low as 1.5e⁻, ensuring cleaner images even at high gain settings.

Mechanical Drawing

Connection Method

Recommended Accessories

	ZWO 850 IR 1.25-inch Filter Add a IR-Pass filter to enhances contrast in planetary imaging (great for Mars, Jupiter, Moon).
	ZWO ASIAIR Plus - 256GB Model Control your new astronomy camera with the ZWO ASIAIR Plus. This device enables you to control, guide, filter control and power your camera without using a computer. Perfect for streamlining and cord management!
	ZWO ADC Atmospheric Dispersion Corrector Add an ADC which helps correct colour fringing caused by atmospheric dispersion (especially for low-altitude planets).
	ZWO New M42 Filter Drawer Add a M42 Filter Drawer to swap out your 2" filters without needing to pyhsically diassemble your camera train every time. Highly recommended!

	ZWO 850 IR 1.25-inch Filter Add a IR-Pass filter to enhances contrast in planetary imaging (great for Mars, Jupiter, Moon).
	ZWO ASIAIR Plus - 256GB Model Control your new astronomy camera with the ZWO ASIAIR Plus. This device enables you to control, guide, filter control and power your camera without using a computer. Perfect for streamlining and cord management!
	ZWO ADC Atmospheric Dispersion Corrector Add an ADC which helps correct colour fringing caused by atmospheric dispersion (especially for low-altitude planets).
	ZWO New M42 Filter Drawer Add a M42 Filter Drawer to swap out your 2" filters without needing to pyhsically diassemble your camera train every time. Highly recommended!

 

About ZWO Optical

Astrophotography has never been easier.

Established in 2011, ZWO Optical is a fast-growing global astroimaging camera powerhouse based in Suzhou China. They focus on building and innovating ground-breaking CMOS cameras such as the iconic ZWO ASI120MM Monochrome CMOS camera (the first-ever planetary CMOS camera to beat a CCD in the early 2010s). ZWO continues to pioneer new astrophotography technology with revolutionary features to capture exceptional quality of images of space that will last you a lifetime. Today, ZWO cameras are recognised by every passionate astrophotographer and are available in over 25 countries internationally.

Product Code: ASI585MC