DC-G100Dvs A7S III
Lumix
DC-G100D (2023)
Starting from £649 new
Best for Vlogging, content creation & lightweight travel
View DC-G100D
Sony
A7S III (2020)
Starting from £2999 new
Best for Professional video & low-light filmmaking
View A7S 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.
Professional Video & Low-Light Filmmaking — A7S III (2020): If video is your primary discipline, the A7S III is the camera. 4K/120p at 10-bit in a weather-sealed body with a 9.44M dot EVF is an extraordinary package. The 12MP sensor isn't limiting for video — and it's usable at ISO 409,600 in a pinch.
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
A7S III (2020)
- Filmmakers and videographers who need 4K/120p at 10-bit
- Event videographers who shoot in dark venues regularly
- Documentary filmmakers who need reliable AF and weather sealing
- Hybrid shooters where video is primary and stills are secondary
Quick take: The dc-g100d has the highest resolution at 20mp; the dc-g100d is the most affordable; only the a7s iii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | DC-G100D (2023) | A7S III (2020) |
|---|---|---|
| Price | £649 | £2,999 |
| Sensor | 20.3MP Micro Four Thirds Live MOS | 12.1MP Full-Frame BSI CMOS (12-bit, back-illuminated) |
| Resolution | 20.3MP | 12.1MP |
| Video | 4K/30p, 4K/24p, 1080p/60p — V-Log L (upgrade) | 4K/120p 10-bit, 4K/60p 10-bit S-Cinetone/S-Log3, 1080p/240p |
| Autofocus | Phase-detect AF — upgraded from G100's contrast-only DFD | Phase-detect, 759 points, real-time Eye AF (human & animal), subject recognition |
| Stabilisation | 2-axis (body); 5-axis Dual IS II when used with OIS lenses | 5.5-stop IBIS |
| Burst Rate | 10fps AF single, 9fps AFS continuous | 10fps mechanical |
| Battery Life | ~250 shots (CIPA) | ~600 shots (CIPA) / ~70min continuous 4K recording |
| Weight | 333g body only | 699g (body, battery, card) |
| Dimensions | 116.5 × 82.5 × 55.8mm | 128.9 × 96.9 × 80.8mm |
| Weather Sealed | No | Yes |
| Viewfinder | EVF 0.53× 3.68M-dot — pop-up style | OLED EVF, 9.44M dots, 0.90× magnification — best EVF Sony has made |
| Screen | 3.0" fully articulating touchscreen, 1.84M dots | 3.0" vari-angle touchscreen, 1.44M dots |
| Mount | Micro Four Thirds (MFT) | Sony E-mount |
| Memory Cards | Single SD/SDHC/SDXC slot | Dual CFexpress Type A / SD UHS-II (both slots) |
| Connectivity | USB-C, 3.5mm mic jack, Bluetooth, Wi-Fi | USB-C (USB 3.2 Gen 2), full-size HDMI, Wi-Fi 6, Bluetooth |
Suitability by genre
| Genre | DC-G100D | A7S III |
|---|---|---|
| Vlogging & Video | — | |
| Travel | ||
| Street | ||
| Portrait | ||
| Landscape | — | |
| Sports | — | |
| Video | — | |
| Wildlife | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with DC-G100D
Camera family history