cameracomparison · 2-way
Sony A1 vs QHYCCD QHY600M
Key differences
Larger pixels (4.35µm vs 3.76µm)
-18% more resolution
Uncooled
Color vs mono
Specifications
| Specification | Sony A1 | QHYCCD QHY600M |
|---|---|---|
| Sensor | ||
| Type | dslr | Dedicated Cooled |
| Sensor | Sony FF stacked BSI | Sony IMX455 |
| Sensor tech | CMOS | CMOS |
| Format | Full frame | Full Frame |
| Sensor size | 35.9×24.0mm | 36.0×24.0mm |
| Diagonal | 43.2mm | 43.3mm |
| Pixel size | 4.35µm | 3.76µm |
| Resolution | 8640×5760 | 9576×6388 |
| Megapixels | 50.1MP | 61.0MP |
| Color | Yes | No |
| Cooling | ||
| Cooled | No | Yes |
| Performance | ||
| Full well | — | 51000e⁻ |
| Peak QE | — | 91% |
Advantages of Sony A1
- Larger pixels — better low-light per-pixel sensitivity
- One-shot color — simpler workflow
Advantages of QHYCCD QHY600M
- Finer sampling at 3.76µm pixels
- Higher resolution (61MP vs 50.1MP)
- Regulated cooling for long exposures
- Mono sensor — ideal for narrowband and LRGB
Best for — Sony A1
- Wide-field mosaics and full-frame telescopes
- Fast, low-noise deep-sky at short focal lengths
- One-shot color — quick results, less processing
Best for — QHYCCD QHY600M
- Wide-field mosaics and full-frame telescopes
- Well-sampled deep-sky at medium focal lengths
- Long-exposure deep-sky under any sky
- Narrowband and LRGB workflows
Sony A1 — typical FOV & scale
- On 250mm refractor (wide)FOV: 8.23° × 5.50°Scale: 3.59"/px
- On 800mm SCT reducerFOV: 2.57° × 1.72°Scale: 1.12"/px
- On 2000mm SCT nativeFOV: 1.03° × 0.69°Scale: 0.45"/px
QHYCCD QHY600M — typical FOV & scale
- On 250mm refractor (wide)FOV: 8.25° × 5.50°Scale: 3.10"/px
- On 800mm SCT reducerFOV: 2.58° × 1.72°Scale: 0.97"/px
- On 2000mm SCT nativeFOV: 1.03° × 0.69°Scale: 0.39"/px
Sony A1 — recommended user
A strong fit for photographers stepping into astro pairing with wide-field refractors.
QHYCCD QHY600M — recommended user
A strong fit for dedicated deep-sky imagers pairing with wide-field refractors.