EOS R100vs Lumix G9 IIvs Sony A9 III

GearFrame · Updated March 2026

Canon EOS R100 Canon EOS R100 (2023) From £529 Best for First camera / beginner photography View EOS R100
VS
Lumix Lumix G9 II Lumix Lumix G9 II (2023) From £1499 Best for Wildlife, sports & hybrid MFT shooters View Lumix G9 II
VS
Sony Sony A9 III Sony Sony A9 III (2023) From £5999 Best for Sports & action professionals View Sony A9 III

Which should you buy?

First Camera / Beginner Photography — EOS R100 (2023): The R100 does the basics well at the lowest possible price point. Its main value is as a gateway into the Canon RF ecosystem — the lenses you buy now will work on any Canon body you upgrade to later. Modest ambitions, reliably met.

Wildlife, Sports & Hybrid Mft Shooters — Lumix G9 II (2023): Phase-detect AF transforms the G9 II into a genuine MFT all-rounder — the best Lumix MFT camera for both stills and video.

Sports & Action Professionals — Sony A9 III (2023): A paradigm-shifting camera — the global shutter eliminates every rolling shutter limitation that has constrained action photography for years.

↓ Full specifications below

EOS R100 (2023)

  • First-time camera buyers stepping up from a smartphone
  • Students and hobbyists wanting an affordable starting point
  • Anyone who wants to start investing in Canon RF glass on a budget
  • Casual photographers who don't need advanced video or speed

Lumix G9 II (2023)

  • You want the best Micro Four Thirds camera for both stills and video
  • You shoot wildlife, sports, or documentary and value the compact, lightweight MFT system
  • You're invested in the MFT lens ecosystem and want the top-tier body to go with it

Sony A9 III (2023)

  • You shoot professional sport, motorsport, or action and need zero rolling shutter distortion
  • You need reliable high-speed flash sync for studio or on-location action work
  • You want the absolute pinnacle of Sony's action and sports camera technology

Quick take: The lumix g9 ii has the highest resolution at 25mp; the eos r100 is the most affordable; only the lumix g9 ii, sony a9 iii are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification EOS R100 (2023)Lumix G9 II (2023)Sony A9 III (2023)
Price £529 £1,499 £5,999
Sensor 24.1MP APS-C CMOS 25.2MP Micro Four Thirds Live MOS 24.6MP full-frame Exmor RS CMOS (global shutter)
Resolution 24.1MP 25.2MP 24.6MP
Video 4K/30p (slight crop), 1080p/60p 5.8K/30p, 4K/120p, C4K/60p, V-Log 4K/120p, 4K/60p, 1080p/240p
Autofocus Dual Pixel CMOS AF, face detection, subject tracking Phase-detect AF with subject/face/eye detection AI subject recognition AF, 759-point phase-detect
Stabilisation None (no IBIS) 8-stop IBIS (with OIS lenses) 8-stop IBIS
Burst Rate 6.5fps mechanical 25fps with AF / 75fps electronic (fixed focus) 120fps blackout-free electronic
Battery Life ~270 shots (CIPA) 680 shots (CIPA) 530 shots (CIPA)
Weight 356g (body, battery, card) 658g body only 703g body only
Dimensions 116.3 × 85.5 × 68.8mm 134.3 × 100.3 × 90.5mm 136.1 × 96.9 × 82.9mm
Weather Sealed No Yes Yes
Viewfinder EVF, 2.36M dots, 0.59× magnification 0.76" OLED EVF, 3.68M dots 0.64" Quad-XGA OLED EVF, 9.44M dots
Screen 3.0" fixed touchscreen, 1.04M dots 3.0" fully articulating touchscreen 3.2" fully articulating touchscreen
Mount Canon RF-mount Micro Four Thirds Sony FE (E-mount)
Memory Cards Single SD UHS-II Dual SD UHS-II Dual CFexpress Type A / SD UHS-II
Connectivity USB-C, Wi-Fi, Bluetooth USB-C 3.1, HDMI full-size, Wi-Fi, Bluetooth USB-C 3.2, HDMI A, Wi-Fi 6, Bluetooth 5.3
⚡ Compare specs side by side EOS R100 prices → Lumix G9 II prices → Sony A9 III prices →

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