cameracomparison · 2-way
QHYCCD QHY268M vs QHYCCD QHY183M
QHYCCD
QHY268M
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
QHYCCD
QHY183M
A strong fit for dedicated deep-sky imagers pairing with longer focal lengths where framing is tight.
Key differences
78% larger sensor
Larger pixels (3.76µm vs 2.4µm)
27% more resolution
Specifications
| Specification | QHYCCD QHY268M | QHYCCD QHY183M |
|---|---|---|
| Sensor | ||
| Type | Dedicated Cooled | dedicated |
| Sensor | Sony IMX571 | Sony IMX183 |
| Sensor tech | CMOS | CMOS |
| Format | APS-C | 1" |
| Sensor size | 23.5×15.7mm | 13.2×8.8mm |
| Diagonal | 28.3mm | 15.9mm |
| Pixel size | 3.76µm | 2.40µm |
| Resolution | 6280×4210 | 5544×3684 |
| Megapixels | 26.0MP | 20.4MP |
| Color | No | No |
| Cooling | ||
| Cooled | Yes | Yes |
| Performance | ||
| Full well | 51000e⁻ | 15000e⁻ |
| Peak QE | 91% | 84% |
Advantages of QHYCCD QHY268M
- Larger sensor (28.3mm vs 15.9mm diagonal) — wider field
- Larger pixels — better low-light per-pixel sensitivity
- Higher resolution (26MP vs 20.4MP)
Advantages of QHYCCD QHY183M
- Finer sampling at 2.4µm pixels
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 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 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 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 QHY268M — 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.