Astrophotoguru · Compare

cameracomparison · 2-way

Sony A1 vs Sony A6700

Sony A1
Sony

A1

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

Sony A6700
Sony

A6700

A strong fit for photographers stepping into astro pairing with a broad range of focal lengths.

Key differences

53% larger sensor
Larger pixels (4.35µm vs 3.76µm)
92% more resolution

Specifications

SpecificationSony A1Sony A6700
Sensor
Typedslrdslr
SensorSony FF stacked BSISony APS-C BSI
Sensor techCMOSCMOS
FormatFull frameAPS-C
Sensor size35.9×24.0mm23.5×15.6mm
Diagonal43.2mm28.2mm
Pixel size4.35µm3.76µm
Resolution8640×57606192×4128
Megapixels50.1MP26.1MP
ColorYesYes
Cooling
CooledNoNo
Performance
Full well
Peak QE
Advantages of Sony A1
  • Larger sensor (43.2mm vs 28.2mm diagonal) — wider field
  • Larger pixels — better low-light per-pixel sensitivity
  • Higher resolution (50.1MP vs 26.1MP)
Advantages of Sony A6700
  • 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 A6700
  • Balanced field for most refractors
  • 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 A6700 — typical FOV & scale
  • On 250mm refractor (wide)
    FOV: 5.39° × 3.58°Scale: 3.10"/px
  • On 800mm SCT reducer
    FOV: 1.68° × 1.12°Scale: 0.97"/px
  • On 2000mm SCT native
    FOV: 0.67° × 0.45°Scale: 0.39"/px
Sony A1 — recommended user

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

Sony A6700 — recommended user

A strong fit for photographers stepping into astro pairing with a broad range of focal lengths.

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