cameracomparison · 2-way
QHYCCD QHY268M vs QHYCCD QHY5III585C
QHYCCD
QHY268M
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
QHYCCD
QHY5III585C
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.
Key differences
119% larger sensor
Larger pixels (3.76µm vs 2.9µm)
210% more resolution
Cooled sensor
Mono vs color
Specifications
| Specification | QHYCCD QHY268M | QHYCCD QHY5III585C |
|---|---|---|
| Sensor | ||
| Type | Dedicated Cooled | guide-camera |
| Sensor | Sony IMX571 | Sony IMX585 |
| Sensor tech | CMOS | CMOS |
| Format | APS-C | 1/1.2" |
| Sensor size | 23.5×15.7mm | 11.2×6.3mm |
| Diagonal | 28.3mm | 12.9mm |
| Pixel size | 3.76µm | 2.90µm |
| Resolution | 6280×4210 | 3856×2180 |
| Megapixels | 26.0MP | 8.4MP |
| Color | No | Yes |
| Cooling | ||
| Cooled | Yes | No |
| Performance | ||
| Full well | 51000e⁻ | 38000e⁻ |
| Peak QE | 91% | 91% |
Advantages of QHYCCD QHY268M
- Larger sensor (28.3mm vs 12.9mm diagonal) — wider field
- Larger pixels — better low-light per-pixel sensitivity
- Higher resolution (26MP vs 8.4MP)
- Regulated cooling for long exposures
- Mono sensor — ideal for narrowband and LRGB
Advantages of QHYCCD QHY5III585C
- Finer sampling at 2.9µm pixels
- One-shot color — simpler workflow
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 QHY5III585C
- Longer focal lengths — tighter framing on small targets
- Well-sampled deep-sky at medium focal lengths
- One-shot color — quick results, less processing
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 QHY5III585C — typical FOV & scale
- On 250mm refractor (wide)FOV: 2.57° × 1.44°Scale: 2.39"/px
- On 800mm SCT reducerFOV: 0.80° × 0.45°Scale: 0.75"/px
- On 2000mm SCT nativeFOV: 0.32° × 0.18°Scale: 0.30"/px
QHYCCD QHY268M — recommended user
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
QHYCCD QHY5III585C — recommended user
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.