Fujifilm GFX 100S IIvs Z6 IIIvs Pentax K-3 Mark III

GearFrame · Updated March 2026

Fujifilm Fujifilm GFX 100S II Fujifilm Fujifilm GFX 100S II (2024) From £4499 Best for Commercial, studio & landscape professionals View Fujifilm GFX 100S II
VS
Nikon Z6 III Nikon Z6 III (2024) From £2199 Best for Hybrid video & action View Z6 III
VS
Pentax Pentax K-3 Mark III Pentax Pentax K-3 Mark III (2021) From £1699 Best for DSLR enthusiasts & outdoor photographers View Pentax K-3 Mark III

Which should you buy?

Commercial, Studio & Landscape Professionals — Fujifilm GFX 100S II (2024): 102MP medium-format quality in the most accessible GFX body — the best entry point to the Fujifilm GFX system.

Hybrid Video & Action — Z6 III (2024): Partial-stacked FF sensor for near-zero blackout, 6K RAW video, and 60fps burst — Nikon's most capable hybrid.

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

Fujifilm GFX 100S II (2024)

  • You need the highest resolution available outside of a Phase One system
  • You shoot studio, fashion, landscape, or architecture at a professional level
  • You want medium format quality without the bulk of a traditional large-format system

Z6 III (2024)

  • You need the best all-round full-frame camera in Nikon's Z system
  • You shoot in challenging or low light and need exceptional high-ISO performance
  • You want a hybrid body that genuinely excels at both professional stills and video

Pentax K-3 Mark III (2021)

  • You're a committed DSLR photographer with significant investment in Pentax glass
  • You shoot in extreme weather conditions and place build quality and reliability above everything
  • You prefer optical viewfinder performance and want the best modern APS-C DSLR available

Quick take: The fujifilm gfx 100s ii has the highest resolution at 102mp; the pentax k-3 mark iii is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification Fujifilm GFX 100S II (2024)Z6 III (2024)Pentax K-3 Mark III (2021)
Price £4,499 £2,199 £1,699
Sensor 102MP medium-format BSI CMOS (43.8 × 32.9mm) 24.5MP Full-frame Partial-stacked CMOS 25.7MP APS-C BSI CMOS (AA-filterless)
Resolution 102.0MP 24.5MP 25.7MP
Video 4K/30p, 1080p/60p 6K/60p RAW, 4K/120p, 4K/60p oversampled, N-Log, 10-bit 4K/30p, 1080p/60p
Autofocus Phase-detect AF with subject/face/eye detection Phase-detect, 273 points, subject detection (human/animal/vehicle/aircraft) SAFOX 13 phase-detect, 101-point (25 cross-type)
Stabilisation 8-stop IBIS 5-axis IBIS, 6.0 stops 5.5-stop 5-axis IBIS (Shake Reduction III)
Burst Rate 7fps 20fps mechanical, 60fps electronic 12fps
Battery Life 460 shots (CIPA) ~380 shots (CIPA) 800 shots (CIPA)
Weight 883g body only 760g body only 820g body only
Dimensions 150.0 × 104.2 × 87.2mm 138.5 × 101.5 × 74.0mm 134.5 × 103.5 × 73.5mm
Weather Sealed Yes Yes Yes
Viewfinder 0.5" OLED EVF, 5.76M dots EVF, 5.76M dots, 0.90× magnification Optical pentaprism, 100% coverage, 1.05× magnification
Screen 3.2" tilting touchscreen 3.2" fully articulating touchscreen 3.2" tilting touchscreen
Mount Fujifilm GFX (G-mount) Nikon Z-mount (full-frame) Pentax KF-mount
Memory Cards Dual SD UHS-II Dual slots: CFexpress Type B + SD UHS-II Dual SD UHS-II
Connectivity USB-C 3.2, Wi-Fi, Bluetooth USB-C 3.2, Bluetooth, Wi-Fi USB-C, Wi-Fi, Bluetooth
⚡ Compare specs side by side Fujifilm GFX 100S II prices → Z6 III prices → Pentax K-3 Mark III prices →

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