cameracomparison · 2-way
QHYCCD QHY268M vs QHYCCD QHY9
QHYCCD
QHY268M
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
Key differences
26% larger sensor
Finer pixels (3.76µm vs 5.4µm)
206% more resolution
Specifications
| Specification | QHYCCD QHY268M | QHYCCD QHY9 |
|---|---|---|
| Sensor | ||
| Type | Dedicated Cooled | dedicated |
| Sensor | Sony IMX571 | Kodak KAF-8300 |
| Sensor tech | CMOS | CCD |
| Format | APS-C | 4/3" |
| Sensor size | 23.5×15.7mm | 18.0×13.5mm |
| Diagonal | 28.3mm | 22.5mm |
| Pixel size | 3.76µm | 5.40µm |
| Resolution | 6280×4210 | 3358×2536 |
| Megapixels | 26.0MP | 8.5MP |
| Color | No | No |
| Cooling | ||
| Cooled | Yes | Yes |
| Performance | ||
| Full well | 51000e⁻ | 25500e⁻ |
| Peak QE | 91% | 56% |
Advantages of QHYCCD QHY268M
- Larger sensor (28.3mm vs 22.5mm diagonal) — wider field
- Finer sampling at 3.76µm pixels
- Higher resolution (26MP vs 8.5MP)
Advantages of QHYCCD QHY9
- Larger pixels — better low-light per-pixel sensitivity
Best for — QHYCCD QHY268M
- Balanced field for most refractors
- Well-sampled deep-sky at medium focal lengths
- Long-exposure deep-sky under any sky
- Narrowband and LRGB workflows
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
QHYCCD QHY268M — typical FOV & scale
- On 250mm refractor (wide)FOV: 5.39° × 3.60°Scale: 3.10"/px
- On 800mm SCT reducerFOV: 1.68° × 1.12°Scale: 0.97"/px
- On 2000mm SCT nativeFOV: 0.67° × 0.45°Scale: 0.39"/px
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 QHY268M — recommended user
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
QHYCCD QHY9 — recommended user
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.