Astrophotoguru · Compare

cameracomparison · 2-way

Sony A1 vs Sony A7C II

Sony A1
Sony

A1

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

Sony A7C II
Sony

A7C II

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

Key differences

Larger pixels (4.35µm vs 3.76µm)
52% more resolution

Specifications

SpecificationSony A1Sony A7C II
Sensor
Typedslrdslr
SensorSony FF stacked BSISony FF BSI
Sensor techCMOSCMOS
FormatFull frameFull frame
Sensor size35.9×24.0mm35.9×23.9mm
Diagonal43.2mm43.1mm
Pixel size4.35µm3.76µm
Resolution8640×57607008×4672
Megapixels50.1MP33.0MP
ColorYesYes
Cooling
CooledNoNo
Performance
Full well
Peak QE
Advantages of Sony A1
  • Larger pixels — better low-light per-pixel sensitivity
  • Higher resolution (50.1MP vs 33MP)
Advantages of Sony A7C II
  • Finer sampling at 3.76µm pixels
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 — Sony A7C II
  • Wide-field mosaics and full-frame telescopes
  • Well-sampled deep-sky at medium 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
Sony A7C II — typical FOV & scale
  • On 250mm refractor (wide)
    FOV: 8.23° × 5.48°Scale: 3.10"/px
  • On 800mm SCT reducer
    FOV: 2.57° × 1.71°Scale: 0.97"/px
  • On 2000mm SCT native
    FOV: 1.03° × 0.68°Scale: 0.39"/px
Sony A1 — recommended user

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

Sony A7C II — recommended user

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

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