Lumix S5 IIXvs Pentax K-3 Mark III
Lumix
Lumix S5 IIX (2023)
Starting from £2399 new
Best for Professional video, filmmaking & hybrid shooters on L-mount
View Lumix S5 IIX
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?
Professional Video, Filmmaking & Hybrid Shooters On L-Mount — Lumix S5 IIX (2023): The S5 II with ProRes RAW and 6K Open Gate — the most serious L-mount video tool in a portable, weather-sealed body.
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 S5 IIX (2023)
- Video professionals who need ProRes RAW output and 6K Open Gate in a portable L-mount body
- L-mount filmmakers who want USB power for extended recording without battery changes
- Hybrid shooters who need both 24MP stills quality and professional video specs in one camera
- S5 II users who specifically need ProRes RAW support for their post-production workflow
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 pentax k-3 mark iii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | Lumix S5 IIX (2023) | Pentax K-3 Mark III (2021) |
|---|---|---|
| Price | £2,399 | £1,699 |
| Sensor | 24.2MP full-frame CMOS | 25.7MP APS-C BSI CMOS (AA-filterless) |
| Resolution | 24.2MP | 25.7MP |
| Video | 6K/30p Open Gate, 4K/60p 10-bit, ProRes RAW via HDMI — V-Log, LUT support | 4K/30p, 1080p/60p |
| Autofocus | Phase-hybrid AF — improved over S5 with subject recognition | SAFOX 13 phase-detect, 101-point (25 cross-type) |
| Stabilisation | 5-axis IBIS — 6.5 stops | 5.5-stop 5-axis IBIS (Shake Reduction III) |
| Burst Rate | 9fps mechanical, 30fps electronic (6MP crop) | 12fps |
| Battery Life | ~370 shots (CIPA) | 800 shots (CIPA) |
| Weight | 740g body only | 820g body only |
| Dimensions | 134.3 × 102.3 × 90.1mm | 134.5 × 103.5 × 73.5mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | OLED EVF, 3.68M-dot, 0.78× | Optical pentaprism, 100% coverage, 1.05× magnification |
| Screen | 3.0" fully articulating touchscreen, 1.84M dots | 3.2" tilting touchscreen |
| Mount | L-mount (Leica/Panasonic/Sigma) | Pentax KF-mount |
| Memory Cards | Dual SD UHS-II slots | Dual SD UHS-II |
| Connectivity | USB-C with power delivery, 3.5mm mic & headphone jacks, HDMI full-size | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | Lumix S5 IIX | Pentax K-3 Mark III |
|---|---|---|
| Vlogging & Video | ||
| Portrait | ||
| Landscape | ||
| Travel | ||
| Sports | — | |
| Street | — | |
| Wildlife | — | |
| Sports & Action | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with Lumix S5 IIX
Camera family history