cameracomparison · 2-way
ZWO ASI533MC Pro vs ZWO ASI220MM Mini
ZWO
ASI533MC Pro
A strong fit for dedicated deep-sky imagers pairing with longer focal lengths where framing is tight.
ZWO
ASI220MM Mini
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.
Key differences
-9% larger sensor
Finer pixels (3.76µm vs 9µm)
406% more resolution
Cooled sensor
Color vs mono
Specifications
| Specification | ZWO ASI533MC Pro | ZWO ASI220MM Mini |
|---|---|---|
| Sensor | ||
| Type | Dedicated Cooled | guide-camera |
| Sensor | Sony IMX533 | Sony IMX432 |
| Sensor tech | CMOS | CMOS |
| Format | 1-inch square | 1.1" |
| Sensor size | 11.3×11.3mm | 14.1×10.6mm |
| Diagonal | 16.0mm | 17.6mm |
| Pixel size | 3.76µm | 9.00µm |
| Resolution | 3008×3008 | 1608×1104 |
| Megapixels | 9.0MP | 1.8MP |
| Color | Yes | No |
| Cooling | ||
| Cooled | Yes | No |
| Performance | ||
| Full well | 50000e⁻ | 90000e⁻ |
| Peak QE | 80% | 80% |
Advantages of ZWO ASI533MC Pro
- Finer sampling at 3.76µm pixels
- Higher resolution (9MP 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 ASI533MC Pro
- Longer focal lengths — tighter framing on small targets
- Well-sampled deep-sky at medium 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 ASI533MC Pro — typical FOV & scale
- On 250mm refractor (wide)FOV: 2.59° × 2.59°Scale: 3.10"/px
- On 800mm SCT reducerFOV: 0.81° × 0.81°Scale: 0.97"/px
- On 2000mm SCT nativeFOV: 0.32° × 0.32°Scale: 0.39"/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 ASI533MC Pro — recommended user
A strong fit for dedicated deep-sky imagers pairing with longer focal lengths where framing is tight.
ZWO ASI220MM Mini — recommended user
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.