cameracomparison · 2-way
QHYCCD QHY9 vs QHYCCD QHY5III200M
QHYCCD
QHY5III200M
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.
Key differences
28% larger sensor
Finer pixels (5.4µm vs 9µm)
378% more resolution
Cooled sensor
Specifications
| Specification | QHYCCD QHY9 | QHYCCD QHY5III200M |
|---|---|---|
| Sensor | ||
| Type | dedicated | guide-camera |
| Sensor | Kodak KAF-8300 | Sony IMX432 |
| Sensor tech | CCD | CMOS |
| Format | 4/3" | 1.1" |
| Sensor size | 18.0×13.5mm | 14.1×10.6mm |
| Diagonal | 22.5mm | 17.6mm |
| Pixel size | 5.40µm | 9.00µm |
| Resolution | 3358×2536 | 1608×1104 |
| Megapixels | 8.5MP | 1.8MP |
| Color | No | No |
| Cooling | ||
| Cooled | Yes | No |
| Performance | ||
| Full well | 25500e⁻ | 90000e⁻ |
| Peak QE | 56% | 80% |
Advantages of QHYCCD QHY9
- Larger sensor (22.5mm vs 17.6mm diagonal) — wider field
- Finer sampling at 5.4µm pixels
- Higher resolution (8.5MP vs 1.78MP)
- Regulated cooling for long exposures
Advantages of QHYCCD QHY5III200M
- Larger pixels — better low-light per-pixel sensitivity
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 QHY5III200M
- Longer focal lengths — tighter framing on small targets
- Fast, low-noise deep-sky at short focal lengths
- 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 QHY5III200M — 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
QHYCCD QHY9 — recommended user
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
QHYCCD QHY5III200M — recommended user
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.