cameracomparison · 2-way
ZWO ASI2400MM Pro vs Pentax K-1 Mark II
Pentax
K-1 Mark II
A strong fit for photographers stepping into astro pairing with wide-field refractors.
Key differences
Larger pixels (5.94µm vs 4.88µm)
-33% more resolution
Cooled sensor
Mono vs color
Specifications
| Specification | ZWO ASI2400MM Pro | Pentax K-1 Mark II |
|---|---|---|
| Sensor | ||
| Type | Dedicated Cooled | dslr |
| Sensor | Sony IMX410 | Pentax FF |
| Sensor tech | CMOS | CMOS |
| Format | Full Frame | Full frame |
| Sensor size | 36.0×24.0mm | 35.9×24.0mm |
| Diagonal | 43.3mm | 43.2mm |
| Pixel size | 5.94µm | 4.88µm |
| Resolution | 6072×4042 | 7360×4912 |
| Megapixels | 24.5MP | 36.4MP |
| Color | No | Yes |
| Cooling | ||
| Cooled | Yes | No |
| Performance | ||
| Full well | 100000e⁻ | — |
| Peak QE | 80% | — |
Advantages of ZWO ASI2400MM Pro
- Larger pixels — better low-light per-pixel sensitivity
- Regulated cooling for long exposures
- Mono sensor — ideal for narrowband and LRGB
Advantages of Pentax K-1 Mark II
- Finer sampling at 4.88µm pixels
- Higher resolution (36.4MP vs 24.5MP)
- One-shot color — simpler workflow
Best for — ZWO ASI2400MM Pro
- Wide-field mosaics and full-frame telescopes
- Fast, low-noise deep-sky at short focal lengths
- Long-exposure deep-sky under any sky
- Narrowband and LRGB workflows
Best for — Pentax K-1 Mark II
- Wide-field mosaics and full-frame telescopes
- Fast, low-noise deep-sky at short focal lengths
- One-shot color — quick results, less processing
ZWO ASI2400MM Pro — typical FOV & scale
- On 250mm refractor (wide)FOV: 8.25° × 5.50°Scale: 4.90"/px
- On 800mm SCT reducerFOV: 2.58° × 1.72°Scale: 1.53"/px
- On 2000mm SCT nativeFOV: 1.03° × 0.69°Scale: 0.61"/px
Pentax K-1 Mark II — typical FOV & scale
- On 250mm refractor (wide)FOV: 8.23° × 5.50°Scale: 4.03"/px
- On 800mm SCT reducerFOV: 2.57° × 1.72°Scale: 1.26"/px
- On 2000mm SCT nativeFOV: 1.03° × 0.69°Scale: 0.50"/px
ZWO ASI2400MM Pro — recommended user
A strong fit for dedicated deep-sky imagers pairing with wide-field refractors.
Pentax K-1 Mark II — recommended user
A strong fit for photographers stepping into astro pairing with wide-field refractors.