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ZWO ASI461MM Pro USB3.0 Cooled Monochrome Astronomy CMOS Camera
Introducing the ASI461MM Pro, equipped with the cutting-edge Sony medium format IMX461 sensor. This remarkable camera boasts a native 16-bit ADC, providing an impressive range of 65,536 levels.
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The ZWO ASI461MM Pro Monochrome Camera redefines astrophotography and scientific imaging with its cutting-edge Sony IMX461 medium-format sensor. Offering a native 16-bit ADC, it captures stunning detail with 100 megapixels, a massive resolution of 11,656 x 8,750 pixels, and an expansive 44mm x 33mm sensor size. Each 3.76μm pixel ensures exceptional clarity, while a full well capacity of 50.3ke (up to 198ke in Bin 2 mode) delivers remarkable dynamic range.
Camera Performance
This camera is engineered for peak performance, featuring a quantum efficiency (QE) peak of 91% for unparalleled sensitivity and precision.
Its innovative zero amp glow circuitry ensures pristine images free from infrared artifacts, even during long exposures. The integrated polyamide heater prevents dew formation, maintaining clear imaging in all environments.
With two-stage TEC cooling, the ASI461MM Pro achieves a sensor temperature reduction of up to 35°C below ambient, ensuring low noise for extended exposures. High Conversion Gain (HCG) mode further optimizes performance by dramatically reducing readout noise while preserving dynamic range at higher gain settings.
Full Specifications
| Type | Monochrome |
| Sensor Type | IMX461 |
| Sensor Size | 44x33mm |
| Pixel Size | 3.76 μm |
| Read Noise | 1.0e |
| Resolution | (11656x8750) |
| Max Framerate | 3.77 FPS |
| Zero Amp Glow? | Yes |
| Delta T | 35°C below ambient |
| Memory Buffer | 256MB DDR3 |
| Shutter | Rolling Shutter |
| QE Peak | 91% |
| Full Well | 503,000e |
| Back Focus | 6.5mm |
| ADC | 16-bit |
| USB | 3.0 |
| Adapter | M68 X 0.75 |
| Weight | 700 g |
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ZWO 12V 5A Power Adapter for Cooled Cameras Used to power your compatible ZWO cooled camera or electronic device. |
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ZWO 7 Position 50mm Electronic Filter Wheel Add 7 of your favourite filters into an electronic filter wheel to swap between them automatically. Suitable for 50mm filters. |
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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: ASI461MM-P
