A7Cvs FX3
Sony
FX3 (2021)
Starting from £3799 new
Best for Professional video, documentary & cinematic filmmaking
View FX3
GearScore™ Verdict — Which should you buy?
Compact Travel & Content Creation — A7C (2020): The A7C proves full-frame doesn't have to be bulky. Excellent battery life, reliable Eye AF and a vari-angle screen in a pocketable body is a compelling combination for travel and content creators. The A7C II improved on it, but the original remains a strong value buy.
Professional Video, Documentary & Cinematic Filmmaking — FX3 (2021): The definitive run-and-gun cinema camera — A7S III sensor quality in a body built specifically for video professionals.
Who should buy what
A7C (2020)
- Travel photographers who want full-frame in the smallest possible body
- Content creators who need a flip screen and reliable Eye AF
- Photographers upgrading from APS-C who want to keep a compact kit
- Vloggers who need 4K and great battery life on the road
FX3 (2021)
- Professional videographers and filmmakers who need cinema-quality colour science in a compact body
- Documentary and run-and-gun shooters who need 4K/120p and built-in XLR audio
- Sony A7S III owners who want a purpose-built video body alongside their stills camera
- Gimbal and drone operators who need a compact full-frame cinema camera
Quick take: The a7c has the highest resolution at 24mp; the a7c is the most affordable; only the fx3 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | A7C (2020) | FX3 (2021) |
|---|---|---|
| Price | £1,299 | £3,799 |
| Sensor | 24.2MP Full-Frame Exmor R BSI CMOS | 12.1MP full-frame BSI Exmor R CMOS (same as A7S III) |
| Resolution | 24.2MP | 12.1MP |
| Video | 4K/30p (oversampled), 1080p/120p slow-motion, S-Log2/S-Log3 | 4K/120p, 4K/60p 10-bit, 12-bit RAW output, S-Log3, S-Cinetone |
| Autofocus | Phase-detect, 693 points, real-time Eye AF & animal AF | Real-time tracking with subject recognition (human, animal) |
| Stabilisation | 5-axis IBIS, 5 stops | 5-axis IBIS — 5 stops |
| Burst Rate | 10fps with AF/AE tracking | 10fps mechanical, 10fps electronic |
| Battery Life | ~740 shots (CIPA) — outstanding for a Sony mirrorless | ~640 shots (CIPA) |
| Weight | 509g (body, battery, card) | 715g body only (with XLR handle) |
| Dimensions | 124.0 × 71.1 × 59.7mm | 129.7 × 78.0 × 84.5mm |
| Weather Sealed | No | Yes |
| Viewfinder | None built-in — use rear screen or accessory EVF | None — monitor/external EVF use only |
| Screen | 3.0" vari-angle touchscreen, 921k dots | 3.0" touchscreen, fully articulating |
| Mount | Sony E-mount | Sony FE mount (full-frame E-mount) |
| Memory Cards | Single SD UHS-II | Dual CFexpress Type A / SD UHS-II slots |
| Connectivity | USB-C (USB 3.2 Gen 2), Wi-Fi, Bluetooth, NFC | USB-C (10Gbps), full-size HDMI, XLR via handle, Bluetooth, Wi-Fi |
Suitability by genre
| Genre | A7C | FX3 |
|---|---|---|
| Travel | ||
| Video | — | |
| Portrait | ||
| Street | ||
| Wildlife | — | |
| Vlogging & Video | — | |
| Low Light | — | |
| Wedding | — |
More comparisons with A7C
Camera family history