cameracomparison · 2-way
Nikon D810A vs ZWO ASI2600MM Pro
ZWO
ASI2600MM Pro
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.
Key differences
53% larger sensor
Larger pixels (4.88µm vs 3.76µm)
39% more resolution
Uncooled
Color vs mono
Specifications
| Specification | Nikon D810A | ZWO ASI2600MM Pro |
|---|---|---|
| Sensor | ||
| Type | dslr | Dedicated Cooled |
| Sensor | Nikon FX astro | Sony IMX571 |
| Sensor tech | CMOS | CMOS |
| Format | Full frame | APS-C |
| Sensor size | 35.9×24.0mm | 23.5×15.7mm |
| Diagonal | 43.2mm | 28.3mm |
| Pixel size | 4.88µm | 3.76µm |
| Resolution | 7360×4912 | 6248×4176 |
| Megapixels | 36.3MP | 26.1MP |
| Color | Yes | No |
| Cooling | ||
| Cooled | No | Yes |
| Performance | ||
| Full well | — | 50000e⁻ |
| Peak QE | — | 91% |
Advantages of Nikon D810A
- Larger sensor (43.2mm vs 28.3mm diagonal) — wider field
- Larger pixels — better low-light per-pixel sensitivity
- Higher resolution (36.3MP vs 26.1MP)
- One-shot color — simpler workflow
Advantages of ZWO ASI2600MM Pro
- Finer sampling at 3.76µm pixels
- Regulated cooling for long exposures
- Mono sensor — ideal for narrowband and LRGB
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 ASI2600MM Pro
- Balanced field for most refractors
- Well-sampled deep-sky at medium focal lengths
- Long-exposure deep-sky under any sky
- Narrowband and LRGB workflows
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 ASI2600MM 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
Nikon D810A — recommended user
A strong fit for photographers stepping into astro pairing with wide-field refractors.
ZWO ASI2600MM Pro — recommended user
A strong fit for dedicated deep-sky imagers pairing with a broad range of focal lengths.