Canon EOS R3vs Leica M11vs 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
Leica Leica M11 Leica Leica M11 (2022) From £7999 Best for Rangefinder enthusiasts & collectors View Leica M11
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.

Rangefinder Enthusiasts & Collectors — Leica M11 (2022): 60MP of full-frame resolution in the thinnest digital M ever made — the M11 is the definitive expression of Leica's rangefinder tradition.

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

Leica M11 (2022)

  • You shoot street, documentary, or reportage and prefer manual focus discipline
  • You value a discreet, minimal camera that doesn't draw attention in public
  • You're willing to invest time in the rangefinder learning curve for a uniquely rewarding experience

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 leica m11 has the highest resolution at 60mp; the pentax k-3 mark iii is the most affordable; only the canon eos r3, pentax k-3 mark iii are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS R3 (2021)Leica M11 (2022)Pentax K-3 Mark III (2021)
Price £5,999 £7,999 £1,699
Sensor 24.1MP full-frame BSI stacked CMOS 60MP full-frame BSI CMOS (Tri-resolution: 60/36/18MP) 25.7MP APS-C BSI CMOS (AA-filterless)
Resolution 24.1MP 60.0MP 25.7MP
Video 6K RAW, 4K/120p, 1080p/180p None 4K/30p, 1080p/60p
Autofocus Dual Pixel CMOS AF II with Eye Control AF Manual focus only (rangefinder coupled) SAFOX 13 phase-detect, 101-point (25 cross-type)
Stabilisation 8-stop IBIS None 5.5-stop 5-axis IBIS (Shake Reduction III)
Burst Rate 30fps electronic / 12fps mechanical 4.5fps 12fps
Battery Life 620 shots (CIPA) 700 shots (CIPA) 800 shots (CIPA)
Weight 1015g body only 530g body only 820g body only
Dimensions 150.0 × 142.6 × 87.2mm 138.6 × 80.0 × 38.5mm 134.5 × 103.5 × 73.5mm
Weather Sealed Yes No Yes
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps Optical rangefinder (0.73× magnification) Optical pentaprism, 100% coverage, 1.05× magnification
Screen 3.2" fully articulating touchscreen 2.3" fixed TFT LCD 3.2" tilting touchscreen
Mount Canon RF Leica M-mount Pentax KF-mount
Memory Cards Dual CFexpress Type B Single SD UHS-II + 64GB internal storage Dual SD UHS-II
Connectivity USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN USB-C, Wi-Fi, Bluetooth USB-C, Wi-Fi, Bluetooth
⚡ Compare specs side by side Canon EOS R3 prices → Leica M11 prices → Pentax K-3 Mark III prices →

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