cameracomparison · 2-way
Nikon D810A vs Canon EOS Ra Mark II
Canon
EOS Ra Mark II
A strong fit for photographers stepping into astro pairing with wide-field refractors.
Key differences
Larger pixels (4.88µm vs 4.4µm)
-19% more resolution
Specifications
| Specification | Nikon D810A | Canon EOS Ra Mark II |
|---|---|---|
| Sensor | ||
| Type | dslr | dslr |
| Sensor | Nikon FX astro | Canon FF astro |
| 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 | 8192×5464 |
| Megapixels | 36.3MP | 44.8MP |
| Color | Yes | Yes |
| Cooling | ||
| Cooled | No | No |
| Performance | ||
| Full well | — | — |
| Peak QE | — | — |
Advantages of Nikon D810A
- Larger pixels — better low-light per-pixel sensitivity
Advantages of Canon EOS Ra Mark II
- Higher resolution (44.8MP vs 36.3MP)
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 — Canon EOS Ra 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
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
Canon EOS Ra Mark II — 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.
Canon EOS Ra Mark II — recommended user
A strong fit for photographers stepping into astro pairing with wide-field refractors.