cameracomparison · 2-way
ZWO ASI2400MM Pro vs ZWO ASI120MM Mini
ZWO
ASI120MM Mini
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.
Key differences
622% larger sensor
Larger pixels (5.94µm vs 3.75µm)
1892% more resolution
Cooled sensor
Specifications
| Specification | ZWO ASI2400MM Pro | ZWO ASI120MM Mini |
|---|---|---|
| Sensor | ||
| Type | Dedicated Cooled | guide-camera |
| Sensor | Sony IMX410 | AR0130CS |
| Sensor tech | CMOS | CMOS |
| Format | Full Frame | 1/3" |
| Sensor size | 36.0×24.0mm | 4.8×3.6mm |
| Diagonal | 43.3mm | 6.0mm |
| Pixel size | 5.94µm | 3.75µm |
| Resolution | 6072×4042 | 1280×960 |
| Megapixels | 24.5MP | 1.2MP |
| Color | No | No |
| Cooling | ||
| Cooled | Yes | No |
| Performance | ||
| Full well | 100000e⁻ | 13000e⁻ |
| Peak QE | 80% | 80% |
Advantages of ZWO ASI2400MM Pro
- Larger sensor (43.3mm vs 6mm diagonal) — wider field
- Larger pixels — better low-light per-pixel sensitivity
- Higher resolution (24.5MP vs 1.23MP)
- Regulated cooling for long exposures
Advantages of ZWO ASI120MM Mini
- Finer sampling at 3.75µm pixels
Best for — ZWO ASI2400MM Pro
- Wide-field mosaics and full-frame telescopes
- Fast, low-noise deep-sky at short focal lengths
- Long-exposure deep-sky under any sky
- Narrowband and LRGB workflows
Best for — ZWO ASI120MM Mini
- Longer focal lengths — tighter framing on small targets
- Well-sampled deep-sky at medium focal lengths
- Narrowband and LRGB workflows
ZWO ASI2400MM Pro — typical FOV & scale
- On 250mm refractor (wide)FOV: 8.25° × 5.50°Scale: 4.90"/px
- On 800mm SCT reducerFOV: 2.58° × 1.72°Scale: 1.53"/px
- On 2000mm SCT nativeFOV: 1.03° × 0.69°Scale: 0.61"/px
ZWO ASI120MM Mini — typical FOV & scale
- On 250mm refractor (wide)FOV: 1.10° × 0.83°Scale: 3.09"/px
- On 800mm SCT reducerFOV: 0.34° × 0.26°Scale: 0.97"/px
- On 2000mm SCT nativeFOV: 0.14° × 0.10°Scale: 0.39"/px
ZWO ASI2400MM Pro — recommended user
A strong fit for dedicated deep-sky imagers pairing with wide-field refractors.
ZWO ASI120MM Mini — recommended user
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.