ZWO ASI 220 MM Mini Mono Camera
Technical sheet for the ZWO ASI220MM Mini monochrome guide camera: description, specifications and highlights for astrophotography autoguiding.
Description
The ASI220MM Mini is a compact monochrome CMOS camera from ZWO dedicated to autoguiding, built around the Sony SC2210 (IMX220) sensor in 1/1.8" format (2.07 MP, 4.0 µm pixels). Its high quantum efficiency (92% peak), including in the near-infrared (50% at 850 nm), makes it easy to lock onto a guide star even under low-contrast skies or through a filter.
Its ultra-compact form factor (Ø 36 mm, 60 g) and 1.25" nosepiece make it a discreet guide camera, easy to pair with a lightweight guide scope such as the Svbony SV165 without unbalancing the optical train.
Technical specifications
| Specification | Value |
|---|---|
| Sensor | Sony SC2210 (IMX220), back-illuminated monochrome CMOS, 1/1.8" |
| Resolution | 2.07 MP (1920 × 1080) |
| Pixel size | 4.0 µm |
| Quantum efficiency (QE) | 92% peak |
| Full well capacity | 8,780 e⁻ |
| Read noise | 0.6 e⁻ (high gain) to 3.2 e⁻ |
| ADC | 12-bit |
| Shutter | Rolling shutter |
| Exposure range | 32 µs — 10 s |
| Frame rate (full resolution) | Up to 14 fps |
| Connectivity | USB 2.0 (USB-C), ST4 guide port |
| Back focus distance | 8.5 / 12.5 mm |
| Optical mount | 1.25" nosepiece, M28.5×0.6 thread |
| Operating temperature | -5°C to 50°C |
| Dimensions | Ø 36 mm × 61 mm |
| Weight | 60 g |
Values from manufacturer specifications, to be confirmed/refined with use.
Official product page: ZWO ASI220MM Mini
Highlights
- Very sensitive sensor (92% QE), including near-infrared, for easily locking onto a guide star.
- Ultra-compact and lightweight (60 g): ideal behind a small guide scope.
- Built-in ST4 port for autoguiding without extra hardware.
- Good cost/performance trade-off for a dedicated guide camera, without the constraints of a cooled camera.
Coming up
This sheet will be updated with real-world guiding accuracy achieved with the Svbony SV165, and the software setup used (PHD2 or equivalent).