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Sony

A7S III

The Sony A7S III is built for one thing: video. A 12.1MP full-frame sensor with extraordinary low-light capability, 4K/120p at 10-bit, a 9.44M dot OLED viewfinder, and the best heat management of any Sony mirrorless. For filmmakers who shoot professionally, nothing else in the Sony lineup comes close.

Typical Price
£2999–£3199
Average price across retailers: ~£3099
Available at 2 retailers
Check price at Amazon
✓ Available at 2 retailers 🔒 No signup needed 📦 UK stock only
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Core
Sensor
12.1MP Full-Frame BSI CMOS (12-bit, back-illuminated)
Resolution
12.1 MP
Mount
Sony E-mount
Dimensions
128.9 × 96.9 × 80.8mm
Weight
699g (body, battery, card)
Weather Sealed
Yes
Performance
Autofocus
Phase-detect, 759 points, real-time Eye AF (human & animal), subject recognition
Stabilisation
5.5-stop IBIS
Burst Rate
10fps mechanical
Battery Life
~600 shots (CIPA) / ~70min continuous 4K recording
Features
Video
4K/120p 10-bit, 4K/60p 10-bit S-Cinetone/S-Log3, 1080p/240p
Viewfinder
OLED EVF, 9.44M dots, 0.90× magnification — best EVF Sony has made
Screen
3.0" vari-angle touchscreen, 1.44M dots
Memory Cards
Dual CFexpress Type A / SD UHS-II (both slots)
Connectivity
USB-C (USB 3.2 Gen 2), full-size HDMI, Wi-Fi 6, Bluetooth

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Suitability Score by Genre
Video
9.0
Wildlife
9.0
Street
9.0
Portrait
7.0
Travel
7.0
✅ Great For
🎬
Video 4K/120p at 10-bit with S-Log3 is the benchmark for this sensor class. Built for professional filmmaking.
🦅
Wildlife Extraordinary low light means dawn/dusk shooting without noise. Eye AF tracks animals reliably.
🌆
Street ISO 12800 usable for night street. Silent shooting and compact-enough body for discreet work.
👤
Portrait Eye AF is excellent. 12MP is limiting for large portrait prints — but fine for digital and modest sizes.
✈️
Travel Weather sealing and versatile performance make it capable for travel. Overkill if you don't shoot video.
⚠️ Not Ideal For
🏔️
Landscape 12MP resolves limited detail compared to 24-45MP alternatives. Not the right tool for landscape work.
📝 How suitability scores are calculated Scores reflect the aggregated consensus from verified purchaser reviews across tracked UK retailers, weighted by photography genre tags applied by reviewers. This is community opinion — not GearFrame editorial assessment.
Price History — A7S III