cameracomparison · 2-way
Nikon D810A vs ZWO ASI4400MC Pro
Key differences
Larger pixels (4.88µm vs 4.4µm)
-18% more resolution
Uncooled
Specifications
| Specification | Nikon D810A | ZWO ASI4400MC Pro |
|---|---|---|
| Sensor | ||
| Type | dslr | Dedicated Cooled |
| Sensor | Nikon FX astro | Sony IMX366 |
| 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 | 4.88µm | 4.40µm |
| Resolution | 7360×4912 | 8192×5460 |
| Megapixels | 36.3MP | 44.0MP |
| Color | Yes | Yes |
| Cooling | ||
| Cooled | No | Yes |
| Performance | ||
| Full well | — | 74600e⁻ |
| Peak QE | — | 80% |
Advantages of Nikon D810A
- Larger pixels — better low-light per-pixel sensitivity
Advantages of ZWO ASI4400MC Pro
- Higher resolution (44MP vs 36.3MP)
- Regulated cooling for long exposures
Best for — Nikon D810A
- 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 — ZWO ASI4400MC Pro
- Wide-field mosaics and full-frame telescopes
- Fast, low-noise deep-sky at short focal lengths
- Long-exposure deep-sky under any sky
- One-shot color — quick results, less processing
Nikon D810A — 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 ASI4400MC Pro — typical FOV & scale
- On 250mm refractor (wide)FOV: 8.25° × 5.50°Scale: 3.63"/px
- On 800mm SCT reducerFOV: 2.58° × 1.72°Scale: 1.13"/px
- On 2000mm SCT nativeFOV: 1.03° × 0.69°Scale: 0.45"/px
Nikon D810A — recommended user
A strong fit for photographers stepping into astro pairing with wide-field refractors.
ZWO ASI4400MC Pro — recommended user
A strong fit for dedicated deep-sky imagers pairing with wide-field refractors.
