DC-G100Dvs Pentax K-3 Mark III
Lumix
DC-G100D (2023)
Starting from £649 new
Best for Vlogging, content creation & lightweight travel
View DC-G100D
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?
Vlogging, Content Creation & Lightweight Travel — DC-G100D (2023): The lightest capable MFT mirrorless for vloggers — phase-detect AF, directional audio, and the full Lumix lens ecosystem under 350g.
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
DC-G100D (2023)
- Content creators who want better quality than a smartphone without the weight of a full-size camera
- Travel vloggers who want the smallest capable MFT camera with a flip screen and mic input
- Photography beginners entering the Lumix MFT system at an accessible price point
- G100 owners who want the upgraded phase-detect AF for better subject tracking
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 dc-g100d is the most affordable; only the pentax k-3 mark iii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | DC-G100D (2023) | Pentax K-3 Mark III (2021) |
|---|---|---|
| Price | £649 | £1,699 |
| Sensor | 20.3MP Micro Four Thirds Live MOS | 25.7MP APS-C BSI CMOS (AA-filterless) |
| Resolution | 20.3MP | 25.7MP |
| Video | 4K/30p, 4K/24p, 1080p/60p — V-Log L (upgrade) | 4K/30p, 1080p/60p |
| Autofocus | Phase-detect AF — upgraded from G100's contrast-only DFD | SAFOX 13 phase-detect, 101-point (25 cross-type) |
| Stabilisation | 2-axis (body); 5-axis Dual IS II when used with OIS lenses | 5.5-stop 5-axis IBIS (Shake Reduction III) |
| Burst Rate | 10fps AF single, 9fps AFS continuous | 12fps |
| Battery Life | ~250 shots (CIPA) | 800 shots (CIPA) |
| Weight | 333g body only | 820g body only |
| Dimensions | 116.5 × 82.5 × 55.8mm | 134.5 × 103.5 × 73.5mm |
| Weather Sealed | No | Yes |
| Viewfinder | EVF 0.53× 3.68M-dot — pop-up style | Optical pentaprism, 100% coverage, 1.05× magnification |
| Screen | 3.0" fully articulating touchscreen, 1.84M dots | 3.2" tilting touchscreen |
| Mount | Micro Four Thirds (MFT) | Pentax KF-mount |
| Memory Cards | Single SD/SDHC/SDXC slot | Dual SD UHS-II |
| Connectivity | USB-C, 3.5mm mic jack, Bluetooth, Wi-Fi | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | DC-G100D | Pentax K-3 Mark III |
|---|---|---|
| Vlogging & Video | ||
| Travel | ||
| Street | — | |
| Portrait | ||
| Landscape | ||
| Sports | — | |
| Wildlife | — | |
| Sports & Action | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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