Astrophotoguru · Compare

cameracomparison · 2-way

Sony A1 vs Canon EOS Ra Mark II

Sony A1
Sony

A1

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

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

12% more resolution

Specifications

SpecificationSony A1Canon EOS Ra Mark II
Sensor
Typedslrdslr
SensorSony FF stacked BSICanon FF astro
Sensor techCMOSCMOS
FormatFull frameFull frame
Sensor size35.9×24.0mm36.0×24.0mm
Diagonal43.2mm43.3mm
Pixel size4.35µm4.40µm
Resolution8640×57608192×5464
Megapixels50.1MP44.8MP
ColorYesYes
Cooling
CooledNoNo
Performance
Full well
Peak QE
Advantages of Sony A1
  • Higher resolution (50.1MP vs 44.8MP)
Advantages of Canon EOS Ra Mark II

Closely matched on the compared specs.

Best for — Sony A1
  • 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
Sony A1 — typical FOV & scale
  • On 250mm refractor (wide)
    FOV: 8.23° × 5.50°Scale: 3.59"/px
  • On 800mm SCT reducer
    FOV: 2.57° × 1.72°Scale: 1.12"/px
  • On 2000mm SCT native
    FOV: 1.03° × 0.69°Scale: 0.45"/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 reducer
    FOV: 2.58° × 1.72°Scale: 1.13"/px
  • On 2000mm SCT native
    FOV: 1.03° × 0.69°Scale: 0.45"/px
Sony A1 — 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.

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