cameracomparison · 2-way
ZWO ASI071MC Pro vs ZWO ASI220MM Mini
ZWO
ASI071MC Pro
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
ZWO
ASI220MM Mini
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.
Key differences
61% larger sensor
Finer pixels (4.78µm vs 9µm)
810% more resolution
Cooled sensor
Color vs mono
Specifications
| Specification | ZWO ASI071MC Pro | ZWO ASI220MM Mini |
|---|---|---|
| Sensor | ||
| Type | dedicated | guide-camera |
| Sensor | Sony IMX071 | Sony IMX432 |
| Sensor tech | CMOS | CMOS |
| Format | APS-C | 1.1" |
| Sensor size | 23.6×15.6mm | 14.1×10.6mm |
| Diagonal | 28.4mm | 17.6mm |
| Pixel size | 4.78µm | 9.00µm |
| Resolution | 4944×3284 | 1608×1104 |
| Megapixels | 16.2MP | 1.8MP |
| Color | Yes | No |
| Cooling | ||
| Cooled | Yes | No |
| Performance | ||
| Full well | 46000e⁻ | 90000e⁻ |
| Peak QE | 50% | 80% |
Advantages of ZWO ASI071MC Pro
- Larger sensor (28.4mm vs 17.6mm diagonal) — wider field
- Finer sampling at 4.78µm pixels
- Higher resolution (16.2MP vs 1.78MP)
- Regulated cooling for long exposures
- One-shot color — simpler workflow
Advantages of ZWO ASI220MM Mini
- Larger pixels — better low-light per-pixel sensitivity
- Mono sensor — ideal for narrowband and LRGB
Best for — ZWO ASI071MC Pro
- Balanced field for most refractors
- Fast, low-noise deep-sky at short focal lengths
- Long-exposure deep-sky under any sky
- One-shot color — quick results, less processing
Best for — ZWO ASI220MM Mini
- Longer focal lengths — tighter framing on small targets
- Fast, low-noise deep-sky at short focal lengths
- Narrowband and LRGB workflows
ZWO ASI071MC Pro — typical FOV & scale
- On 250mm refractor (wide)FOV: 5.41° × 3.58°Scale: 3.94"/px
- On 800mm SCT reducerFOV: 1.69° × 1.12°Scale: 1.23"/px
- On 2000mm SCT nativeFOV: 0.68° × 0.45°Scale: 0.49"/px
ZWO ASI220MM Mini — typical FOV & scale
- On 250mm refractor (wide)FOV: 3.23° × 2.42°Scale: 7.43"/px
- On 800mm SCT reducerFOV: 1.01° × 0.76°Scale: 2.32"/px
- On 2000mm SCT nativeFOV: 0.40° × 0.30°Scale: 0.93"/px
ZWO ASI071MC Pro — recommended user
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
ZWO ASI220MM Mini — recommended user
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.