Lumix G9vs Pentax K-3 Mark III
VS
Pentax
Pentax K-3 Mark III (2021)
Starting from £1699 new
Best for DSLR enthusiasts & outdoor photographers
View Pentax K-3 Mark III
GearScore™ Verdict — Which should you buy?
Wildlife, Sports, Travel — Lumix G9 (2017): The G9 showed that Micro Four Thirds could compete for fast-action stills.
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.
Who should buy what
Lumix G9 (2017)
- Wildlife photographers who want fast burst and long telephoto reach at lower cost
- MFT system users who prioritise stills over video
Pentax K-3 Mark III (2021)
- DSLR photographers who want the finest APS-C optical viewfinder experience
- Outdoor and weather photographers who need robust all-weather sealing
- Pentax lens owners who want to use their existing K-mount glass
- Photographers who prefer optical viewfinders and refuse to switch to mirrorless
Quick take: The pentax k-3 mark iii has the highest resolution at 26mp; the lumix g9 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | Lumix G9 (2017) | Pentax K-3 Mark III (2021) |
|---|---|---|
| Price | £549 | £1,699 |
| Sensor | Micro Four Thirds Live MOS | 25.7MP APS-C BSI CMOS (AA-filterless) |
| Resolution | 20.3MP | 25.7MP |
| Video | 4K 60fps, C4K 24fps | 4K/30p, 1080p/60p |
| Autofocus | 225-point contrast-detect DFD | SAFOX 13 phase-detect, 101-point (25 cross-type) |
| Stabilisation | 5-axis IBIS, 6.5 stops (6.0 stops dual IS) | 5.5-stop 5-axis IBIS (Shake Reduction III) |
| Burst Rate | 20fps mechanical, 60fps electronic | 12fps |
| Battery Life | 400 shots (CIPA) | 800 shots (CIPA) |
| Weight | 658g (body only) | 820g body only |
| Dimensions | 136.9 × 97.3 × 91.6mm | 134.5 × 103.5 × 73.5mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.83× 3.68M-dot | Optical pentaprism, 100% coverage, 1.05× magnification |
| Screen | 3.0" fully articulating touchscreen, 1.04M-dot | 3.2" tilting touchscreen |
| Mount | Micro Four Thirds | Pentax KF-mount |
| Memory Cards | 2× SD UHS-II | Dual SD UHS-II |
| Connectivity | Wi-Fi, Bluetooth 4.2, USB-C, HDMI full-size | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | Lumix G9 | Pentax K-3 Mark III |
|---|---|---|
| Landscape | — | |
| Wildlife | — | |
| Sports & Action | — | |
| Portrait | — | |
| Travel | — | |
| Vlogging & Video | — |
More comparisons with Lumix G9
Camera family history