Astrophotoguru · Compare

cameracomparison · 2-way

Nikon D810A vs Canon EOS R

Nikon D810A
Nikon

D810A

A strong fit for photographers stepping into astro pairing with wide-field refractors.

Canon EOS R
Canon

EOS R

A strong fit for photographers stepping into astro pairing with wide-field refractors.

Key differences

Finer pixels (4.88µm vs 5.36µm)
20% more resolution

Specifications

SpecificationNikon D810ACanon EOS R
Sensor
Typedslrdslr
SensorNikon FX astroCanon FF
Sensor techCMOSCMOS
FormatFull frameFull frame
Sensor size35.9×24.0mm36.0×24.0mm
Diagonal43.2mm43.3mm
Pixel size4.88µm5.36µm
Resolution7360×49126720×4480
Megapixels36.3MP30.3MP
ColorYesYes
Cooling
CooledNoNo
Performance
Full well
Peak QE
Advantages of Nikon D810A
  • Higher resolution (36.3MP vs 30.3MP)
Advantages of Canon EOS R

Closely matched on the compared specs.

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 R
  • 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 reducer
    FOV: 2.57° × 1.72°Scale: 1.26"/px
  • On 2000mm SCT native
    FOV: 1.03° × 0.69°Scale: 0.50"/px
Canon EOS R — typical FOV & scale
  • On 250mm refractor (wide)
    FOV: 8.25° × 5.50°Scale: 4.42"/px
  • On 800mm SCT reducer
    FOV: 2.58° × 1.72°Scale: 1.38"/px
  • On 2000mm SCT native
    FOV: 1.03° × 0.69°Scale: 0.55"/px
Nikon D810A — recommended user

A strong fit for photographers stepping into astro pairing with wide-field refractors.

Canon EOS R — recommended user

A strong fit for photographers stepping into astro pairing with wide-field refractors.

Recommended alternatives