ZWO ASI220MM Mini Monochrome CMOS Camera and Guide Camera

ZWO ASI220MM Mini Monochrome Camera – Ultimate Sensitivity for Guiding and Imaging

If you’re serious about deep-sky astrophotography or need a premium guiding solution for long-exposure imaging, the ZWO ASI220MM Mini is an exceptional choice. This compact yet powerful monochrome CMOS camera is designed to deliver remarkable sensitivity, ultra-low noise, and a wide dynamic range—everything you need for precise autoguiding and planetary imaging.

Advanced Sensor Technology for Maximum Sensitivity

At the heart of the ASI220MM Mini is the Sony IMX220 1/1.8” monochrome sensor, a next-generation upgrade over its predecessor, the ASI120MM Mini. With a 4.0μm pixel size and a resolution of 1920 x 1080 (2.1 MP), this camera balances high resolution with excellent light-gathering ability.

What truly sets the ASI220MM Mini apart is its incredible 92% peak quantum efficiency (QE). More QE means more photons are converted into usable signal, allowing for superior guiding performance even when tracking faint stars in light-polluted skies. The camera's back-illuminated (BSI) sensor architecture further enhances light sensitivity, making it one of the most efficient guiding cameras available today.

Unrivaled Low-Noise Performance

For guiding accuracy and deep-sky imaging, reducing noise is just as important as increasing sensitivity. The ASI220MM Mini features ultra-low read noise as low as 0.6e (at high gain), meaning you can achieve cleaner signals even at short exposures. The high dynamic range of 89 dB ensures fine details are preserved, preventing bright stars from overexposing while keeping dim objects clearly visible.

Optimized for Guiding & Planetary Imaging

The ASI220MM Mini is engineered for guiding precision, whether you’re using an off-axis guider (OAG) or a dedicated guide scope. The larger sensor size compared to previous mini models provides a larger field of view, making it easier to locate guide stars—especially crucial for deep-sky astrophotography.

If planetary imaging is your focus, the ASI220MM Mini offers high frame rates up to 71 fps at full resolution and even faster at cropped resolutions. The high-speed USB 2.0 interface ensures smooth data transfer, and its AR-coated protective window minimizes unwanted reflections, helping to capture ultra-sharp lunar and planetary details.

Compact & Lightweight for Any Setup

Designed for maximum compatibility, the ASI220MM Mini features a 1.25” form factor, making it an excellent match for standard guide scopes, off-axis guiders, and filter wheels. The small, cylindrical body minimizes weight on your setup, which is particularly beneficial for portable astrophotography rigs and travel setups.

Key Features at a Glance

• Sony IMX220 1/1.8” BSI monochrome sensor for superior light sensitivity
• Peak QE of 92% for enhanced low-light performance
• 4.0μm pixel size providing an optimal balance of resolution and light collection
• Ultra-low read noise (0.6e) and high dynamic range (89 dB) for clean, detailed images
• High-speed frame rates up to 71 fps at full resolution
• Larger field of view compared to previous mini cameras, making guide star acquisition easier
• 1.25” compact form factor for seamless integration with guide scopes and OAGs
• USB 2.0 connectivity for reliable performance and easy compatibility with most guiding software

The Ideal Upgrade for Autoguiding & Planetary Imaging

Whether you need a high-performance guiding camera for deep-sky astrophotography or a versatile monochrome imager for capturing detailed planetary shots, the ZWO ASI220MM Mini delivers exceptional results. Its superior sensitivity, low noise, and expanded field of view make it a must-have for astrophotographers looking to push their imaging capabilities further.

Upgrade your guiding and imaging setup today with the ZWO ASI220MM Mini and experience the difference in precision, clarity, and performance.

Drivers and Softwares:

The ZWO website has the newest camera drivers and many DSO and Planetary capture software choices available.. Please make sure the newest driver and software has been installed before you start imaging:

https://astronomy-imaging-camera.com/software/

One of the coolest gadgets, and a neccessity according to a majority of ZWO users, is the ASIAIR PLUS.  It is an all-in-one wireless camera solution.  The ASIair plus gives you control of focus, image taking, plate solving, and computerized mount control with the included SkySafari bridge all controlled by your smartdevice or tablet.  It really is pretty awesome.