Compare Pentax 645Z DSLR vs Sony a9 (Alpha 9) Mirrorless vs Sony a7R III / a7R IIIa (A7R3) Mirrorless

Pentax 645Z DSLR

Sony a9 (Alpha 9) Mirrorless

Sony a7R III / a7R IIIa (A7R3) Mirrorless

Pentax 645Z DSLRSony a9 (Alpha 9) MirrorlessSony a7R III / a7R IIIa (A7R3) Mirrorless
Variants
a7R IIIa

Reviews

Neofiliac score62%74%74%
Pros
  • Long battery life
  • Medium format look
  • Exceptionally high 51 MP resolution
  • Weather-sealed
  • Affordable for a 645 DSLR
  • Long battery life
  • Extraordinary 20.0 fps burst rate
  • Rather compact
  • Weather-sealed
  • Supports both WiFi and Bluetooth
  • Long battery life
  • 5.5 stops of IBIS
  • Good 10.0 fps burst rate
  • Rather compact
  • High 42 MP resolution
  • Weather-sealed
  • Supports both WiFi and Bluetooth
Cons
  • Menu not touch-enabled
  • Very low 3.0 fps burst rate
  • Very large in size
  • Very heavy
  • Viewfinder coverage is cropped at 98%
  • Viewfinder with low 0.62x magnification
  • Viewfinder with low 0.78x magnification
  • Viewfinder with low 0.78x magnification
  • Lacks intervalometer for timelapse

Price

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