Canon EOS R3vs EOS R6 Mark IIvs GFX 50S II

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
Canon EOS R6 Mark II Canon EOS R6 Mark II (2022) From £2099 Best for Portraits & action View EOS R6 Mark II
VS
Fujifilm GFX 50S II Fujifilm GFX 50S II (2021) From £2999 Best for Studio & portrait specialists View GFX 50S II

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 & Action — EOS R6 Mark II (2022): 40fps burst, 8-stop IBIS, and Canon's best-in-class Dual Pixel AF — exceptional for action, sports, and portrait work.

Studio & Portrait Specialists — GFX 50S II (2021): Medium format quality at the most accessible price ever — 51MP detail and tonal richness no APS-C or full-frame body can replicate.

↓ 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

EOS R6 Mark II (2022)

  • You want a do-everything full-frame body for weddings and events
  • You need reliable subject tracking across stills and fast-moving video
  • You shoot both photos and video professionally and need a single body that handles both
  • You want Canon's colour science with a modern mirrorless system

GFX 50S II (2021)

  • You want to experience medium format without a five-figure investment
  • You shoot landscape, architecture, or portraits where resolution and tonal depth matter
  • You're in the Fujifilm ecosystem and want to step up to a larger sensor

Quick take: The gfx 50s ii has the highest resolution at 51mp; the eos r6 mark ii is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS R3 (2021)EOS R6 Mark II (2022)GFX 50S II (2021)
Price £5,999 £2,099 £2,999
Sensor 24.1MP full-frame BSI stacked CMOS 24.2MP Full-frame BSI CMOS 51.4MP Medium Format GFX 44×33mm BSI CMOS
Resolution 24.1MP 24.2MP 51.4MP
Video 6K RAW, 4K/120p, 1080p/180p 4K/60p 10-bit oversampled, 6K RAW out, FHD/180p 4K/30p (cropped)
Autofocus Dual Pixel CMOS AF II with Eye Control AF Dual Pixel CMOS AF II, 6072 zones, deep-learning subject tracking Phase-detect, 425 points
Stabilisation 8-stop IBIS 5-axis IBIS, 8.0 stops (coordinated with IS lenses) 5-axis IBIS, 6.5 stops
Burst Rate 30fps electronic / 12fps mechanical 12fps mechanical, 40fps electronic 3fps
Battery Life 620 shots (CIPA) ~760 shots (CIPA) ~440 shots (CIPA)
Weight 1015g body only 670g body only 900g body only
Dimensions 150.0 × 142.6 × 87.2mm 138.4 × 98.4 × 88.4mm 150.0 × 104.2 × 87.2mm
Weather Sealed Yes Yes Yes
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps EVF, 3.69M dots, 0.76× magnification EVF, 3.69M dots, 0.77× magnification
Screen 3.2" fully articulating touchscreen 3.0" fully articulating touchscreen 3.2" tilting touchscreen
Mount Canon RF Canon RF mount (full-frame) Fujifilm G-mount (medium format)
Memory Cards Dual CFexpress Type B Dual SD UHS-II slots Dual SD UHS-II slots
Connectivity USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN USB-C 3.1, Bluetooth, Wi-Fi USB-C, Bluetooth, Wi-Fi
⚡ Compare specs side by side Canon EOS R3 prices → EOS R6 Mark II prices → GFX 50S II prices →

Compare pairs from this group