Astrophotoguru · Compare

cameracomparison · 2-way

Sony A7 IV vs Pentax K-1 Mark II

Sony A7 IV
Sony

A7 IV

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

Pentax K-1 Mark II
Pentax

K-1 Mark II

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

Key differences

Larger pixels (5.13µm vs 4.88µm)
-9% more resolution

Specifications

SpecificationSony A7 IVPentax K-1 Mark II
Sensor
TypeMirrorlessdslr
SensorPentax FF
Sensor techCMOSCMOS
FormatFull FrameFull frame
Sensor size35.9×23.9mm35.9×24.0mm
Diagonal43.1mm43.2mm
Pixel size5.13µm4.88µm
Resolution7008×46727360×4912
Megapixels33.0MP36.4MP
ColorYesYes
Cooling
CooledNoNo
Performance
Full well
Peak QE
Advantages of Sony A7 IV

Closely matched on the compared specs.

Advantages of Pentax K-1 Mark II
  • Higher resolution (36.4MP vs 33MP)
Best for — Sony A7 IV
  • 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 — Pentax K-1 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 A7 IV — typical FOV & scale
  • On 250mm refractor (wide)
    FOV: 8.23° × 5.48°Scale: 4.23"/px
  • On 800mm SCT reducer
    FOV: 2.57° × 1.71°Scale: 1.32"/px
  • On 2000mm SCT native
    FOV: 1.03° × 0.68°Scale: 0.53"/px
Pentax K-1 Mark II — 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
Sony A7 IV — recommended user

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

Pentax K-1 Mark II — recommended user

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

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