Canon EOS R3vs X-T5vs Pentax K-3 Mark III

GearFrame · Updated March 2026

Canon Canon EOS R3 Canon Canon EOS R3 (2021) From £5999 Best for Sports & photojournalism professionals View Canon EOS R3
VS
Fujifilm X-T5 Fujifilm X-T5 (2022) From £1499 Best for Portraits & landscape View X-T5
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?

Sports & Photojournalism Professionals — Canon EOS R3 (2021): The pinnacle of Canon's mirrorless lineup for speed — Eye Control AF and 30fps burst in the most rugged body Canon has ever produced.

Portraits & Landscape — X-T5 (2022): Fujifilm's finest stills camera — 40MP, 7-stop IBIS, and the most distinctive colour rendering available.

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

Canon EOS R3 (2021)

  • You shoot sport, motorsport, wildlife, or news at a professional level
  • You need Canon's most reliable and fastest autofocus available
  • You need extreme weather sealing for demanding shooting conditions

X-T5 (2022)

  • You're a photographer first and video is secondary or completely irrelevant
  • You want the highest resolution Fujifilm's APS-C system can deliver
  • You value a compact, tactile camera with physical dials and classic controls

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 x-t5 has the highest resolution at 40mp; the x-t5 is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS R3 (2021)X-T5 (2022)Pentax K-3 Mark III (2021)
Price £5,999 £1,499 £1,699
Sensor 24.1MP full-frame BSI stacked CMOS 40.2MP APS-C X-Trans CMOS 5 HR 25.7MP APS-C BSI CMOS (AA-filterless)
Resolution 24.1MP 40.2MP 25.7MP
Video 6K RAW, 4K/120p, 1080p/180p 6.2K/30p, 4K/60p uncropped, F-Log2, 10-bit 4K/30p, 1080p/60p
Autofocus Dual Pixel CMOS AF II with Eye Control AF Phase-detect, 425 points, subject tracking SAFOX 13 phase-detect, 101-point (25 cross-type)
Stabilisation 8-stop IBIS 7-stop IBIS 5.5-stop 5-axis IBIS (Shake Reduction III)
Burst Rate 30fps electronic / 12fps mechanical 15fps mechanical, 20fps electronic 12fps
Battery Life 620 shots (CIPA) ~740 shots (CIPA) 800 shots (CIPA)
Weight 1015g body only 557g body only 820g body only
Dimensions 150.0 × 142.6 × 87.2mm 129.5 × 91.1 × 63.8mm 134.5 × 103.5 × 73.5mm
Weather Sealed Yes Yes Yes
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps EVF, 3.69M dots, 0.80× magnification Optical pentaprism, 100% coverage, 1.05× magnification
Screen 3.2" fully articulating touchscreen 3.0" fully articulating touchscreen 3.2" tilting touchscreen
Mount Canon RF Fujifilm X-mount Pentax KF-mount
Memory Cards Dual CFexpress Type B Dual slots: UHS-II + UHS-I Dual SD UHS-II
Connectivity USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN USB-C 3.2, Bluetooth, Wi-Fi USB-C, Wi-Fi, Bluetooth
⚡ Compare specs side by side Canon EOS R3 prices → X-T5 prices → Pentax K-3 Mark III prices →

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