cameracomparison · 2-way
Atik Horizon II vs ZWO ASI533MM Pro
Atik
Horizon II
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
ZWO
ASI533MM Pro
A strong fit for dedicated deep-sky imagers pairing with longer focal lengths where framing is tight.
Key differences
39% larger sensor
81% more resolution
Color vs mono
Specifications
| Specification | Atik Horizon II | ZWO ASI533MM Pro |
|---|---|---|
| Sensor | ||
| Type | dedicated | Dedicated Cooled |
| Sensor | Panasonic MN34230 | Sony IMX533 |
| Sensor tech | CMOS | CMOS |
| Format | 4/3" | 1-inch square |
| Sensor size | 17.7×13.4mm | 11.3×11.3mm |
| Diagonal | 22.2mm | 16.0mm |
| Pixel size | 3.80µm | 3.76µm |
| Resolution | 4644×3506 | 3008×3008 |
| Megapixels | 16.3MP | 9.0MP |
| Color | Yes | No |
| Cooling | ||
| Cooled | Yes | Yes |
| Performance | ||
| Full well | 20000e⁻ | 50000e⁻ |
| Peak QE | 60% | 91% |
Advantages of Atik Horizon II
- Larger sensor (22.2mm vs 16mm diagonal) — wider field
- Higher resolution (16.3MP vs 9MP)
- One-shot color — simpler workflow
Advantages of ZWO ASI533MM Pro
- Mono sensor — ideal for narrowband and LRGB
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
Best for — ZWO ASI533MM Pro
- Longer focal lengths — tighter framing on small targets
- Well-sampled deep-sky at medium focal lengths
- Long-exposure deep-sky under any sky
- Narrowband and LRGB workflows
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
ZWO ASI533MM Pro — typical FOV & scale
- On 250mm refractor (wide)FOV: 2.59° × 2.59°Scale: 3.10"/px
- On 800mm SCT reducerFOV: 0.81° × 0.81°Scale: 0.97"/px
- On 2000mm SCT nativeFOV: 0.32° × 0.32°Scale: 0.39"/px
Atik Horizon II — recommended user
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
ZWO ASI533MM Pro — recommended user
A strong fit for dedicated deep-sky imagers pairing with longer focal lengths where framing is tight.