cameracomparison · 2-way
QHYCCD QHY9 vs QHYCCD QHY183M
QHYCCD
QHY183M
A strong fit for dedicated deep-sky imagers pairing with longer focal lengths where framing is tight.
Key differences
42% larger sensor
Larger pixels (5.4µm vs 2.4µm)
-58% more resolution
Specifications
| Specification | QHYCCD QHY9 | QHYCCD QHY183M |
|---|---|---|
| Sensor | ||
| Type | dedicated | dedicated |
| Sensor | Kodak KAF-8300 | Sony IMX183 |
| Sensor tech | CCD | CMOS |
| Format | 4/3" | 1" |
| Sensor size | 18.0×13.5mm | 13.2×8.8mm |
| Diagonal | 22.5mm | 15.9mm |
| Pixel size | 5.40µm | 2.40µm |
| Resolution | 3358×2536 | 5544×3684 |
| Megapixels | 8.5MP | 20.4MP |
| Color | No | No |
| Cooling | ||
| Cooled | Yes | Yes |
| Performance | ||
| Full well | 25500e⁻ | 15000e⁻ |
| Peak QE | 56% | 84% |
Advantages of QHYCCD QHY9
- Larger sensor (22.5mm vs 15.9mm diagonal) — wider field
- Larger pixels — better low-light per-pixel sensitivity
Advantages of QHYCCD QHY183M
- Finer sampling at 2.4µm pixels
- Higher resolution (20.4MP vs 8.5MP)
Best for — QHYCCD QHY9
- Balanced field for most refractors
- Fast, low-noise deep-sky at short focal lengths
- Long-exposure deep-sky under any sky
- Narrowband and LRGB workflows
Best for — QHYCCD QHY183M
- Longer focal lengths — tighter framing on small targets
- Planetary and lunar high-resolution imaging
- Long-exposure deep-sky under any sky
- Narrowband and LRGB workflows
QHYCCD QHY9 — typical FOV & scale
- On 250mm refractor (wide)FOV: 4.13° × 3.09°Scale: 4.46"/px
- On 800mm SCT reducerFOV: 1.29° × 0.97°Scale: 1.39"/px
- On 2000mm SCT nativeFOV: 0.52° × 0.39°Scale: 0.56"/px
QHYCCD QHY183M — typical FOV & scale
- On 250mm refractor (wide)FOV: 3.03° × 2.02°Scale: 1.98"/px
- On 800mm SCT reducerFOV: 0.95° × 0.63°Scale: 0.62"/px
- On 2000mm SCT nativeFOV: 0.38° × 0.25°Scale: 0.25"/px
QHYCCD QHY9 — recommended user
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
QHYCCD QHY183M — recommended user
A strong fit for dedicated deep-sky imagers pairing with longer focal lengths where framing is tight.