cameracomparison · 2-way
Player One Poseidon-C Pro vs Atik Horizon II

Player One
Poseidon-C Pro
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.

Atik
Horizon II
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
Key differences
27% larger sensor
60% more resolution
Specifications
| Specification | Player One Poseidon-C Pro | Atik Horizon II |
|---|---|---|
| Sensor | ||
| Type | Dedicated Cooled | dedicated |
| Sensor | Sony IMX571 | Panasonic MN34230 |
| Sensor tech | CMOS | CMOS |
| Format | APS-C | 4/3" |
| Sensor size | 23.5×15.7mm | 17.7×13.4mm |
| Diagonal | 28.3mm | 22.2mm |
| Pixel size | 3.76µm | 3.80µm |
| Resolution | 6248×4176 | 4644×3506 |
| Megapixels | 26.1MP | 16.3MP |
| Color | Yes | Yes |
| Cooling | ||
| Cooled | Yes | Yes |
| Performance | ||
| Full well | 51000e⁻ | 20000e⁻ |
| Peak QE | 80% | 60% |
Advantages of Player One Poseidon-C Pro
- Larger sensor (28.3mm vs 22.2mm diagonal) — wider field
- Higher resolution (26.1MP vs 16.3MP)
Advantages of Atik Horizon II
Closely matched on the compared specs.
Best for — Player One Poseidon-C Pro
- Balanced field for most refractors
- Well-sampled deep-sky at medium focal lengths
- Long-exposure deep-sky under any sky
- One-shot color — quick results, less processing
Best for — Atik Horizon II
- Balanced field for most refractors
- Well-sampled deep-sky at medium focal lengths
- Long-exposure deep-sky under any sky
- One-shot color — quick results, less processing
Player One Poseidon-C Pro — 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
Atik Horizon II — typical FOV & scale
- On 250mm refractor (wide)FOV: 4.06° × 3.07°Scale: 3.14"/px
- On 800mm SCT reducerFOV: 1.27° × 0.96°Scale: 0.98"/px
- On 2000mm SCT nativeFOV: 0.51° × 0.38°Scale: 0.39"/px
Player One Poseidon-C Pro — recommended user
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
Atik Horizon II — recommended user
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.