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Z5 IIvs Pentax K-3 Mark III

GearFrame · Updated March 2026

Nikon Z5 II Nikon Z5 II (2024) Starting from £1329 new Best for Full-frame value £1329 at Wex Photo Video → View Z5 II
VS
Pentax Pentax K-3 Mark III Pentax Pentax K-3 Mark III (2021) Starting from £1699 new Best for DSLR enthusiasts & outdoor photographers Used from £856 at eBay → View Pentax K-3 Mark III

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GearScore™ Verdict — Which should you buy?

Full-Frame Value — Z5 II (2024): The most accessible full-frame mirrorless — dual card slots, weather sealing, and Nikon colour at a sensible price.

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

Z5 II (2024)

  • DSLR photographers making the switch to full-frame mirrorless
  • Enthusiasts who want full-frame Z quality at the most accessible price
  • Z5 owners wanting significantly improved autofocus and uncropped 4K
  • Landscape and portrait photographers stepping up from APS-C

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 z5 ii is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification Z5 II (2024)Pentax K-3 Mark III (2021)
Price £1,329 £1,699
Sensor 24.5MP Full-frame BSI CMOS 25.7MP APS-C BSI CMOS (AA-filterless)
Resolution 24.5MP 25.7MP
Video 4K/30p oversampled, 1080p/120p, N-Log 4K/30p, 1080p/60p
Autofocus Phase-detect, 273 points, subject detection (human/animal/vehicle) SAFOX 13 phase-detect, 101-point (25 cross-type)
Stabilisation 5-axis IBIS, 5.0 stops 5.5-stop 5-axis IBIS (Shake Reduction III)
Burst Rate 14fps mechanical, 30fps electronic 12fps
Battery Life ~470 shots (CIPA) 800 shots (CIPA)
Weight 700g body only 820g body only
Dimensions 134.0 × 100.5 × 69.9mm 134.5 × 103.5 × 73.5mm
Weather Sealed Yes Yes
Viewfinder EVF, 3.69M dots, 0.80× magnification Optical pentaprism, 100% coverage, 1.05× magnification
Screen 3.2" tilting touchscreen 3.2" tilting touchscreen
Mount Nikon Z-mount (full-frame) Pentax KF-mount
Memory Cards Dual SD UHS-II slots Dual SD UHS-II
Connectivity USB-C 3.2, Bluetooth, Wi-Fi USB-C, Wi-Fi, Bluetooth
Genre Z5 IIPentax K-3 Mark III
Portrait
9.0
7.0
Landscape
9.0
9.0
Wedding & Events
9.0
Travel
7.0
7.0
Street
7.0
Sports & Action
4.0
9.0
Wildlife
9.0
Vlogging & Video
4.0

GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →

⚡ Compare specs side by side Z5 II prices → Pentax K-3 Mark III prices →

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