Z50vs Pentax K-3 Mark III

GearFrame · Updated March 2026

Nikon Z50 Nikon Z50 (2019) Starting from £499 new Best for Beginner, travel, everyday View Z50
VS
Pentax Pentax K-3 Mark III Pentax Pentax K-3 Mark III (2021) Starting from £1699 new Best for DSLR enthusiasts & outdoor photographers View Pentax K-3 Mark III

GearScore™ Verdict — Which should you buy?

Beginner, Travel, Everyday — Z50 (2019): Nikon's Z system at its most accessible.

Dslr Enthusiasts & Outdoor Photographers — Pentax K-3 Mark III (2021): The finest APS-C DSLR ever made — class-leading weather sealing, optical viewfinder, 5-axis IBIS, and extraordinary build for photographers committed to DSLR.

↓ Full specifications below

Z50 (2019)

  • Nikon DSLR users wanting a lighter mirrorless
  • First-time enthusiast camera buyers

Pentax K-3 Mark III (2021)

  • DSLR photographers who want the finest APS-C optical viewfinder experience
  • Outdoor and weather photographers who need robust all-weather sealing
  • Pentax lens owners who want to use their existing K-mount glass
  • Photographers who prefer optical viewfinders and refuse to switch to mirrorless

Quick take: The pentax k-3 mark iii has the highest resolution at 26mp; the z50 is the most affordable; only the pentax k-3 mark iii is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Z50 (2019)Pentax K-3 Mark III (2021)
Price £499 £1,699
Sensor APS-C CMOS 25.7MP APS-C BSI CMOS (AA-filterless)
Resolution 20.9MP 25.7MP
Video 4K 30fps (1.5× crop), 1080p 120fps 4K/30p, 1080p/60p
Autofocus 209-point phase-detect hybrid AF SAFOX 13 phase-detect, 101-point (25 cross-type)
Stabilisation None 5.5-stop 5-axis IBIS (Shake Reduction III)
Burst Rate 11fps 12fps
Battery Life 300 shots (CIPA) 800 shots (CIPA)
Weight 397g (body only) 820g body only
Dimensions 126.5 × 93.5 × 60.0mm 134.5 × 103.5 × 73.5mm
Weather Sealed No Yes
Viewfinder EVF 0.68× 2.36M-dot Optical pentaprism, 100% coverage, 1.05× magnification
Screen 3.2" downward-tilting touchscreen, 1.04M-dot 3.2" tilting touchscreen
Mount Nikon Z-Mount (DX) Pentax KF-mount
Memory Cards Single SD UHS-I Dual SD UHS-II
Connectivity Wi-Fi, Bluetooth 4.2, Micro USB, Micro HDMI USB-C, Wi-Fi, Bluetooth
Genre Z50Pentax K-3 Mark III
Landscape
9.0
Wildlife
9.0
Sports & Action
9.0
Portrait
7.0
Travel
7.0
Vlogging & Video
4.0
⚡ Compare specs side by side Z50 prices → Pentax K-3 Mark III prices →

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