cameracomparison · 2-way
ZWO ASI385MC vs ZWO ASI662MC
ZWO
ASI385MC
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.
ZWO
ASI662MC
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.
Key differences
30% larger sensor
Larger pixels (3.75µm vs 2.9µm)
Specifications
| Specification | ZWO ASI385MC | ZWO ASI662MC |
|---|---|---|
| Sensor | ||
| Type | dedicated | dedicated |
| Sensor | Sony IMX385 | Sony IMX662 |
| Sensor tech | CMOS | CMOS |
| Format | 1/2" | 1/2.8" |
| Sensor size | 7.3×4.1mm | 5.6×3.2mm |
| Diagonal | 8.4mm | 6.5mm |
| Pixel size | 3.75µm | 2.90µm |
| Resolution | 1936×1096 | 1920×1080 |
| Megapixels | 2.1MP | 2.1MP |
| Color | Yes | Yes |
| Cooling | ||
| Cooled | No | No |
| Performance | ||
| Full well | 25000e⁻ | 38000e⁻ |
| Peak QE | 80% | 91% |
Advantages of ZWO ASI385MC
- Larger sensor (8.4mm vs 6.46mm diagonal) — wider field
- Larger pixels — better low-light per-pixel sensitivity
Advantages of ZWO ASI662MC
- Finer sampling at 2.9µm pixels
Best for — ZWO ASI385MC
- Longer focal lengths — tighter framing on small targets
- Well-sampled deep-sky at medium focal lengths
- One-shot color — quick results, less processing
Best for — ZWO ASI662MC
- Longer focal lengths — tighter framing on small targets
- Well-sampled deep-sky at medium focal lengths
- One-shot color — quick results, less processing
ZWO ASI385MC — typical FOV & scale
- On 250mm refractor (wide)FOV: 1.67° × 0.94°Scale: 3.09"/px
- On 800mm SCT reducerFOV: 0.52° × 0.29°Scale: 0.97"/px
- On 2000mm SCT nativeFOV: 0.21° × 0.12°Scale: 0.39"/px
ZWO ASI662MC — typical FOV & scale
- On 250mm refractor (wide)FOV: 1.28° × 0.73°Scale: 2.39"/px
- On 800mm SCT reducerFOV: 0.40° × 0.23°Scale: 0.75"/px
- On 2000mm SCT nativeFOV: 0.16° × 0.09°Scale: 0.30"/px
ZWO ASI385MC — recommended user
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.
ZWO ASI662MC — recommended user
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.