ZWO ASI220MM-MINI 2.07 MP CMOS Monochrome Astronomy Camera
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- Back-illuminated SC2210 sensor
- 92% peak quantum efficiency (QE)
- Ultra-low 0.6e read noise
- Large 4 µm pixels
- Full well capacity of 8780e
- 14 fps at full resolution
- USB-C and ST-4 ports
- Lightweight design
ZWO ASI220MM Mini: Precision Guiding Made Easy
The ZWO ASI220MM-MINI is a next-generation monochrome guide camera built for dependable guiding. With high sensitivity, ultra-low noise, and excellent near-infrared performance, it makes locating faint guide stars easier than ever. Its large sensor also gives you a wider field of view, helping your guiding software quickly lock onto stars. Lightweight and easy to use, the ASI220MM is a smart upgrade for any astrophotography setup.
Key Features of the ASI220MM
Large Sensor, Wide FOV
At the heart of the MINI is the 1/1.8″ SC2210 back-illuminated sensor, which delivers a resolution of 1920 × 1080 (2.07 megapixels). With 4 µm pixels, this sensor is optimized for light capture and provides sharp star profiles with clean detail. The back-illuminated design also improves sensitivity, especially in the near-infrared range.
Low Read Noise
The ASI220MM achieves read noise as low as 0.6e- in HCG mode. Low read noise ensures that even faint star signals remain clean and usable, reducing the chance of errors in guiding corrections. Whether you’re imaging under dark skies or light-polluted ones, this clean signal helps keep your mount on track.
High Quantum Efficiency
The ASI220MM reaches a peak quantum efficiency of 92%, giving you exceptional sensitivity across the spectrum. This high QE means more light is converted into signal, making it easier for your guiding software to lock onto stars and maintain accurate tracking throughout your session.
Full Well Depth & Dynamic Range
A full well capacity of 8780e helps prevent bright stars from saturating. This, combined with a dynamic range of nearly 89 dB, allows the camera to capture both bright and faint stars in the same field without losing detail. The result is smoother, more consistent guiding data.
AR-Coated Sensor Window
Over the sensor, ZWO has fitted an AR-coated protective window. This coating reduces reflections and improves light transmission, ensuring that more of the incoming starlight reaches the sensor.
Guiding Made Simple
The ASI220MMM-MINI is highly versatile and works seamlessly with different setups. With a 1.25″ extender included, it can easily reach focus in guide scopes. For off-axis guiders (OAG), the camera can be pushed inward or pulled outward to find the correct spacing from the prism. Explore ZWO OAG-L.
Easy Connections
Connecting the ASI220MM-MINI is quick and reliable.
- An ST-4 port gives you the option to connect directly to your mount’s autoguider port for traditional guiding control.
- The USB-C 2.0 port provides both power and data in one cable, and its reversible design makes it easier to plug in at night.
Use with CS Lenses
Pair the ASI220MM with a CS-mount lens (adapter included) and it can double as an all-sky camera or even a surveillance-style camera for your observatory. With its wide field of view and excellent sensitivity, including in the near-infrared, the camera can monitor cloud cover, sky conditions, or general activity around your setup. This makes it a versatile tool that goes beyond guiding.
ASI220 vs ASI290
| Feature | ASI220MM | ASI290MM |
|---|---|---|
| Sensor | 1/1.8″ SC2210, monochrome CMOS | 1/2.8″ IMX290, monochrome CMOS |
| Resolution | 1920 × 1080 (2.07 MP) | 1936 × 1096 (2.12 MP) |
| Pixel Size | 4 µm | 2.9 µm |
| Diagonal | 8.81 mm | 6.5 mm |
| Read Noise | 0.6 to 3.2e | 1.0 to 3.2e |
| Frame Rate | 14 fps | 20.4 fps |
| QE | 92% | 80% |
| Ports | USB-C 2.0, ST-4 | USB 3.0, ST-4 |
| Weight | 60 grams | 80 grams |
| Back Focus | 8.5 mm (12.5 mm with extender) | 8.5 mm |
Specifications
- Sensor: 1/1.8″ SC2210 monochrome CMOS
- Resolution: 1920 × 1080 (2.07 MP)
- Pixel Size: 4 µm
- Sensor Size: 7.68 × 4.32 mm (8.81 mm diagonal)
- Quantum Efficiency: ~92% peak
- Read Noise: 0.6 e⁻ to 3.2 e⁻
- Full Well Capacity: 8780 e⁻
- ADC: 12-bit
- Dynamic Range: ~89 dB
- Shutter: Rolling
- Exposure Range: 32 µs to 10 s
- Max FPS: 14 fps at full resolution
- Ports: USB-C 2.0, ST-4
- Back Focus: 8.5 mm (12.5 mm with extender)
- Protective Window: AR-coated
- Weight: 60 grams
- Operating Temperature: –5 °C to 50 °C
- Storage Temperature: –20 °C to 60 °C
ZWO ASI220MM Mini Connection Methods
ZWO ASI220MM Mini Mechanical Diagram
Frequently Asked Questions
Is the ASI220MM Mini only for guiding?
While designed primarily as a guide camera, the ASI220MM Mini can also capture planetary and lunar images. It runs at up to 14 frames per second at full resolution, and even faster with smaller regions of interest. But, its monochrome sensors means filters will need to be used to capture a full color image.
How does the ASI220MM Mini compare to the older ASI290MM Mini?
The ASI220MM Mini has a larger sensor, bigger 4µm pixels, and higher near-infrared sensitivity. This makes it easier to find and lock onto guide stars, especially when using an off-axis guider.
Do I need special software to use this camera?
No. The ASI220MM Mini works with most popular guiding and imaging software, including PHD2, ASCOM-based programs, and ZWO’s ASIAIR. Drivers are available for Windows, macOS, and Linux.
Can I use this camera with an off-axis guider?
Yes. The ASI220MM Mini is designed to work well with both guide scopes and off-axis guiders. Its larger pixels and wide field of view make it easier to locate stars when guiding off-axis. Learn more about autoguiding.
Does the camera come with adapters?
Yes. Included in the box are a 1.25″ extender and an M28.5-CS adapter. These allow you to use the camera with guide scopes, off-axis guiders, and optional CS-mount lenses.
What connection does it use?
The camera connects via USB-C 2.0 for power and data transfer. An ST-4 port is also included for direct guiding connections to compatible mounts.
Other Information
- Country of Manufacture: China
ZWO ASI220MM Mini: Precision Guiding Made Easy
The ZWO ASI220MM-MINI is a next-generation monochrome guide camera built for dependable guiding. With high sensitivity, ultra-low noise, and excellent near-infrared performance, it makes locating faint guide stars easier than ever. Its large sensor also gives you a wider field of view, helping your guiding software quickly lock onto stars. Lightweight and easy to use, the ASI220MM is a smart upgrade for any astrophotography setup.
Key Features of the ASI220MM
Large Sensor, Wide FOV
At the heart of the MINI is the 1/1.8″ SC2210 back-illuminated sensor, which delivers a resolution of 1920 × 1080 (2.07 megapixels). With 4 µm pixels, this sensor is optimized for light capture and provides sharp star profiles with clean detail. The back-illuminated design also improves sensitivity, especially in the near-infrared range.
Low Read Noise
The ASI220MM achieves read noise as low as 0.6e- in HCG mode. Low read noise ensures that even faint star signals remain clean and usable, reducing the chance of errors in guiding corrections. Whether you’re imaging under dark skies or light-polluted ones, this clean signal helps keep your mount on track.
High Quantum Efficiency
The ASI220MM reaches a peak quantum efficiency of 92%, giving you exceptional sensitivity across the spectrum. This high QE means more light is converted into signal, making it easier for your guiding software to lock onto stars and maintain accurate tracking throughout your session.
Full Well Depth & Dynamic Range
A full well capacity of 8780e helps prevent bright stars from saturating. This, combined with a dynamic range of nearly 89 dB, allows the camera to capture both bright and faint stars in the same field without losing detail. The result is smoother, more consistent guiding data.
AR-Coated Sensor Window
Over the sensor, ZWO has fitted an AR-coated protective window. This coating reduces reflections and improves light transmission, ensuring that more of the incoming starlight reaches the sensor.
Guiding Made Simple
The ASI220MMM-MINI is highly versatile and works seamlessly with different setups. With a 1.25″ extender included, it can easily reach focus in guide scopes. For off-axis guiders (OAG), the camera can be pushed inward or pulled outward to find the correct spacing from the prism. Explore ZWO OAG-L.
Easy Connections
Connecting the ASI220MM-MINI is quick and reliable.
- An ST-4 port gives you the option to connect directly to your mount’s autoguider port for traditional guiding control.
- The USB-C 2.0 port provides both power and data in one cable, and its reversible design makes it easier to plug in at night.
Use with CS Lenses
Pair the ASI220MM with a CS-mount lens (adapter included) and it can double as an all-sky camera or even a surveillance-style camera for your observatory. With its wide field of view and excellent sensitivity, including in the near-infrared, the camera can monitor cloud cover, sky conditions, or general activity around your setup. This makes it a versatile tool that goes beyond guiding.
ASI220 vs ASI290
| Feature | ASI220MM | ASI290MM |
|---|---|---|
| Sensor | 1/1.8″ SC2210, monochrome CMOS | 1/2.8″ IMX290, monochrome CMOS |
| Resolution | 1920 × 1080 (2.07 MP) | 1936 × 1096 (2.12 MP) |
| Pixel Size | 4 µm | 2.9 µm |
| Diagonal | 8.81 mm | 6.5 mm |
| Read Noise | 0.6 to 3.2e | 1.0 to 3.2e |
| Frame Rate | 14 fps | 20.4 fps |
| QE | 92% | 80% |
| Ports | USB-C 2.0, ST-4 | USB 3.0, ST-4 |
| Weight | 60 grams | 80 grams |
| Back Focus | 8.5 mm (12.5 mm with extender) | 8.5 mm |
Specifications
- Sensor: 1/1.8″ SC2210 monochrome CMOS
- Resolution: 1920 × 1080 (2.07 MP)
- Pixel Size: 4 µm
- Sensor Size: 7.68 × 4.32 mm (8.81 mm diagonal)
- Quantum Efficiency: ~92% peak
- Read Noise: 0.6 e⁻ to 3.2 e⁻
- Full Well Capacity: 8780 e⁻
- ADC: 12-bit
- Dynamic Range: ~89 dB
- Shutter: Rolling
- Exposure Range: 32 µs to 10 s
- Max FPS: 14 fps at full resolution
- Ports: USB-C 2.0, ST-4
- Back Focus: 8.5 mm (12.5 mm with extender)
- Protective Window: AR-coated
- Weight: 60 grams
- Operating Temperature: –5 °C to 50 °C
- Storage Temperature: –20 °C to 60 °C
ZWO ASI220MM Mini Connection Methods
ZWO ASI220MM Mini Mechanical Diagram
Frequently Asked Questions
Is the ASI220MM Mini only for guiding?
While designed primarily as a guide camera, the ASI220MM Mini can also capture planetary and lunar images. It runs at up to 14 frames per second at full resolution, and even faster with smaller regions of interest. But, its monochrome sensors means filters will need to be used to capture a full color image.
How does the ASI220MM Mini compare to the older ASI290MM Mini?
The ASI220MM Mini has a larger sensor, bigger 4µm pixels, and higher near-infrared sensitivity. This makes it easier to find and lock onto guide stars, especially when using an off-axis guider.
Do I need special software to use this camera?
No. The ASI220MM Mini works with most popular guiding and imaging software, including PHD2, ASCOM-based programs, and ZWO’s ASIAIR. Drivers are available for Windows, macOS, and Linux.
Can I use this camera with an off-axis guider?
Yes. The ASI220MM Mini is designed to work well with both guide scopes and off-axis guiders. Its larger pixels and wide field of view make it easier to locate stars when guiding off-axis. Learn more about autoguiding.
Does the camera come with adapters?
Yes. Included in the box are a 1.25″ extender and an M28.5-CS adapter. These allow you to use the camera with guide scopes, off-axis guiders, and optional CS-mount lenses.
What connection does it use?
The camera connects via USB-C 2.0 for power and data transfer. An ST-4 port is also included for direct guiding connections to compatible mounts.
- 1 × ZWO ASI220MM Mini
- 1 × 1.25-inch Cover
- 1 × 1.25-inch Extender
- 1 × M28.5-CS Adapter
- 1 × USB 2.0 Type-C Cable (0.5 meters)
- 1 × USB 2.0 Type-C Cable (2 meters)
- 1 × Quick Guide
- Back-illuminated SC2210 sensor
- 92% peak quantum efficiency (QE)
- Ultra-low 0.6e read noise
- Large 4 µm pixels
- Full well capacity of 8780e
- 14 fps at full resolution
- USB-C and ST-4 ports
- Lightweight design
ZWO ASI220MM Mini: Precision Guiding Made Easy
The ZWO ASI220MM-MINI is a next-generation monochrome guide camera built for dependable guiding. With high sensitivity, ultra-low noise, and excellent near-infrared performance, it makes locating faint guide stars easier than ever. Its large sensor also gives you a wider field of view, helping your guiding software quickly lock onto stars. Lightweight and easy to use, the ASI220MM is a smart upgrade for any astrophotography setup.
Key Features of the ASI220MM
Large Sensor, Wide FOV
At the heart of the MINI is the 1/1.8″ SC2210 back-illuminated sensor, which delivers a resolution of 1920 × 1080 (2.07 megapixels). With 4 µm pixels, this sensor is optimized for light capture and provides sharp star profiles with clean detail. The back-illuminated design also improves sensitivity, especially in the near-infrared range.
Low Read Noise
The ASI220MM achieves read noise as low as 0.6e- in HCG mode. Low read noise ensures that even faint star signals remain clean and usable, reducing the chance of errors in guiding corrections. Whether you’re imaging under dark skies or light-polluted ones, this clean signal helps keep your mount on track.
High Quantum Efficiency
The ASI220MM reaches a peak quantum efficiency of 92%, giving you exceptional sensitivity across the spectrum. This high QE means more light is converted into signal, making it easier for your guiding software to lock onto stars and maintain accurate tracking throughout your session.
Full Well Depth & Dynamic Range
A full well capacity of 8780e helps prevent bright stars from saturating. This, combined with a dynamic range of nearly 89 dB, allows the camera to capture both bright and faint stars in the same field without losing detail. The result is smoother, more consistent guiding data.
AR-Coated Sensor Window
Over the sensor, ZWO has fitted an AR-coated protective window. This coating reduces reflections and improves light transmission, ensuring that more of the incoming starlight reaches the sensor.
Guiding Made Simple
The ASI220MMM-MINI is highly versatile and works seamlessly with different setups. With a 1.25″ extender included, it can easily reach focus in guide scopes. For off-axis guiders (OAG), the camera can be pushed inward or pulled outward to find the correct spacing from the prism. Explore ZWO OAG-L.
Easy Connections
Connecting the ASI220MM-MINI is quick and reliable.
- An ST-4 port gives you the option to connect directly to your mount’s autoguider port for traditional guiding control.
- The USB-C 2.0 port provides both power and data in one cable, and its reversible design makes it easier to plug in at night.
Use with CS Lenses
Pair the ASI220MM with a CS-mount lens (adapter included) and it can double as an all-sky camera or even a surveillance-style camera for your observatory. With its wide field of view and excellent sensitivity, including in the near-infrared, the camera can monitor cloud cover, sky conditions, or general activity around your setup. This makes it a versatile tool that goes beyond guiding.
ASI220 vs ASI290
| Feature | ASI220MM | ASI290MM |
|---|---|---|
| Sensor | 1/1.8″ SC2210, monochrome CMOS | 1/2.8″ IMX290, monochrome CMOS |
| Resolution | 1920 × 1080 (2.07 MP) | 1936 × 1096 (2.12 MP) |
| Pixel Size | 4 µm | 2.9 µm |
| Diagonal | 8.81 mm | 6.5 mm |
| Read Noise | 0.6 to 3.2e | 1.0 to 3.2e |
| Frame Rate | 14 fps | 20.4 fps |
| QE | 92% | 80% |
| Ports | USB-C 2.0, ST-4 | USB 3.0, ST-4 |
| Weight | 60 grams | 80 grams |
| Back Focus | 8.5 mm (12.5 mm with extender) | 8.5 mm |
Specifications
- Sensor: 1/1.8″ SC2210 monochrome CMOS
- Resolution: 1920 × 1080 (2.07 MP)
- Pixel Size: 4 µm
- Sensor Size: 7.68 × 4.32 mm (8.81 mm diagonal)
- Quantum Efficiency: ~92% peak
- Read Noise: 0.6 e⁻ to 3.2 e⁻
- Full Well Capacity: 8780 e⁻
- ADC: 12-bit
- Dynamic Range: ~89 dB
- Shutter: Rolling
- Exposure Range: 32 µs to 10 s
- Max FPS: 14 fps at full resolution
- Ports: USB-C 2.0, ST-4
- Back Focus: 8.5 mm (12.5 mm with extender)
- Protective Window: AR-coated
- Weight: 60 grams
- Operating Temperature: –5 °C to 50 °C
- Storage Temperature: –20 °C to 60 °C
ZWO ASI220MM Mini Connection Methods
ZWO ASI220MM Mini Mechanical Diagram
Frequently Asked Questions
Is the ASI220MM Mini only for guiding?
While designed primarily as a guide camera, the ASI220MM Mini can also capture planetary and lunar images. It runs at up to 14 frames per second at full resolution, and even faster with smaller regions of interest. But, its monochrome sensors means filters will need to be used to capture a full color image.
How does the ASI220MM Mini compare to the older ASI290MM Mini?
The ASI220MM Mini has a larger sensor, bigger 4µm pixels, and higher near-infrared sensitivity. This makes it easier to find and lock onto guide stars, especially when using an off-axis guider.
Do I need special software to use this camera?
No. The ASI220MM Mini works with most popular guiding and imaging software, including PHD2, ASCOM-based programs, and ZWO’s ASIAIR. Drivers are available for Windows, macOS, and Linux.
Can I use this camera with an off-axis guider?
Yes. The ASI220MM Mini is designed to work well with both guide scopes and off-axis guiders. Its larger pixels and wide field of view make it easier to locate stars when guiding off-axis. Learn more about autoguiding.
Does the camera come with adapters?
Yes. Included in the box are a 1.25″ extender and an M28.5-CS adapter. These allow you to use the camera with guide scopes, off-axis guiders, and optional CS-mount lenses.
What connection does it use?
The camera connects via USB-C 2.0 for power and data transfer. An ST-4 port is also included for direct guiding connections to compatible mounts.
Other Information
- Country of Manufacture: China
- 1 × ZWO ASI220MM Mini
- 1 × 1.25-inch Cover
- 1 × 1.25-inch Extender
- 1 × M28.5-CS Adapter
- 1 × USB 2.0 Type-C Cable (0.5 meters)
- 1 × USB 2.0 Type-C Cable (2 meters)
- 1 × Quick Guide
ZWO ASI220MM-MINI 2.07 MP CMOS Monochrome Astronomy Camera