Astrophotoguru · Compare

cameracomparison · 2-way

Canon EOS Ra vs Nikon D810A

Canon EOS Ra
Canon

EOS Ra

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

Nikon D810A
Nikon

D810A

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

Key differences

Larger pixels (5.36µm vs 4.88µm)
-17% more resolution

Specifications

SpecificationCanon EOS RaNikon D810A
Sensor
TypeMirrorlessdslr
SensorNikon FX astro
Sensor techCMOSCMOS
FormatFull FrameFull frame
Sensor size36.0×24.0mm35.9×24.0mm
Diagonal43.3mm43.2mm
Pixel size5.36µm4.88µm
Resolution6720×44807360×4912
Megapixels30.3MP36.3MP
ColorYesYes
Cooling
CooledNoNo
Performance
Full well
Peak QE
Advantages of Canon EOS Ra

Closely matched on the compared specs.

Advantages of Nikon D810A
  • Higher resolution (36.3MP vs 30.3MP)
Best for — Canon EOS Ra
  • 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 — 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
Canon EOS Ra — 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 — 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 Ra — recommended user

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

Nikon D810A — recommended user

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

Recommended alternatives