Lumix G9 IIvs A7R III
Lumix
Lumix G9 II (2023)
Starting from £1499 new
Best for Wildlife, sports & hybrid MFT shooters
View Lumix G9 II
VS
Sony
A7R III (2017)
Starting from £1799 new
Best for Landscape, studio & commercial photography
View A7R III
GearScore™ Verdict — Which should you buy?
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.
Landscape, Studio & Commercial Photography — A7R III (2017): The camera that converted professionals to mirrorless — 42MP, IBIS, and 10fps in a body that still competes today.
Who should buy what
Lumix G9 II (2023)
- Stills photographers who want the best MFT camera for sport and wildlife
- G9 owners upgrading to phase-detect AF and improved video specs
- Hybrid MFT shooters who want strong stills and 5.7K video in one body
- Photographers who want the most capable Lumix MFT camera ever made
A7R III (2017)
- Landscape and studio photographers who need 42MP resolution at a used-price discount vs A7R IV
- Canon/Nikon DSLR professionals considering a mirrorless switch at a lower investment
- Commercial and product photographers who want full-frame resolution with IBIS for handheld work
- Portrait photographers who want the sharpest possible full-frame files for large print work
Quick take: The a7r iii has the highest resolution at 42mp; the lumix g9 ii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | Lumix G9 II (2023) | A7R III (2017) |
|---|---|---|
| Price | £1,499 | £1,799 |
| Sensor | 25.2MP Micro Four Thirds Live MOS | 42.4MP full-frame BSI Exmor R CMOS |
| Resolution | 25.2MP | 42.4MP |
| Video | 5.8K/30p, 4K/120p, C4K/60p, V-Log | 4K/30p (full-frame readout), 1080p/120p |
| Autofocus | Phase-detect AF with subject/face/eye detection | 399 phase-detect + 425 contrast AF points — real-time Eye AF |
| Stabilisation | 8-stop IBIS (with OIS lenses) | 5-axis IBIS — 5.5 stops |
| Burst Rate | 25fps with AF / 75fps electronic (fixed focus) | 10fps with AF/AE tracking |
| Battery Life | 680 shots (CIPA) | ~650 shots (CIPA) |
| Weight | 658g body only | 650g body only |
| Dimensions | 134.3 × 100.3 × 90.5mm | 126.9 × 95.6 × 73.7mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | 0.76" OLED EVF, 3.68M dots | EVF, 3.69M dots, 0.78× magnification |
| Screen | 3.0" fully articulating touchscreen | 3.0" touchscreen, tilting |
| Mount | Micro Four Thirds | Sony FE mount (full-frame E-mount) |
| Memory Cards | Dual SD UHS-II | Dual SD slots (one UHS-II) |
| Connectivity | USB-C 3.1, HDMI full-size, Wi-Fi, Bluetooth | USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack |
Suitability by genre
| Genre | Lumix G9 II | A7R III |
|---|---|---|
| Wildlife | — | |
| Sports & Action | — | |
| Vlogging & Video | ||
| Landscape | ||
| Portrait | ||
| Travel | — | |
| Wedding | — | |
| Street | — | |
| Sports | — |
More comparisons with Lumix G9 II
Camera family history