cameracomparison · 2-way
QHYCCD QHY5III200M vs QHYCCD QHY183M
QHYCCD
QHY5III200M
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.
QHYCCD
QHY183M
A strong fit for dedicated deep-sky imagers pairing with longer focal lengths where framing is tight.
Key differences
11% larger sensor
Larger pixels (9µm vs 2.4µm)
-91% more resolution
Uncooled
Specifications
| Specification | QHYCCD QHY5III200M | QHYCCD QHY183M |
|---|---|---|
| Sensor | ||
| Type | guide-camera | dedicated |
| Sensor | Sony IMX432 | Sony IMX183 |
| Sensor tech | CMOS | CMOS |
| Format | 1.1" | 1" |
| Sensor size | 14.1×10.6mm | 13.2×8.8mm |
| Diagonal | 17.6mm | 15.9mm |
| Pixel size | 9.00µm | 2.40µm |
| Resolution | 1608×1104 | 5544×3684 |
| Megapixels | 1.8MP | 20.4MP |
| Color | No | No |
| Cooling | ||
| Cooled | No | Yes |
| Performance | ||
| Full well | 90000e⁻ | 15000e⁻ |
| Peak QE | 80% | 84% |
Advantages of QHYCCD QHY5III200M
- Larger sensor (17.6mm vs 15.9mm diagonal) — wider field
- Larger pixels — better low-light per-pixel sensitivity
Advantages of QHYCCD QHY183M
- Finer sampling at 2.4µm pixels
- Higher resolution (20.4MP vs 1.78MP)
- Regulated cooling for long exposures
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
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 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 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 QHY5III200M — recommended user
A strong fit for photographers stepping into astro pairing with longer focal lengths where framing is tight.
QHYCCD QHY183M — recommended user
A strong fit for dedicated deep-sky imagers pairing with longer focal lengths where framing is tight.