Who should buy the A7S III?

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

What is the A7S III best used for?

Video, Wildlife, Street, Portrait, Travel.

How much does the A7S III cost in the UK?

The A7S III starts from £3389 in the UK, available across 4 retailers. Prices are tracked live on GearFrame.

Sony

Sony A7S III

Name: A7S III
Brand: Sony
Availability: InStock

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.

GearFrame's Take

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.

Starting from

£3389 new

Used from £1976 (Wex Photo Video)

Average price across retailers: ~£3099

Available at 4 retailers

Check price at Clifton Cameras

✓ Available at 4 retailers 🔒 No signup needed 📦 UK stock only

RetailerPrice

Clifton Cameras

£3389

Check on Clifton Cameras →

Wex Photo Video used

£1976

Check on Wex Photo Video →

eBay

Lowest Buy It Now · marketplace

£2018

Search eBay →

Amazon

—

Check on Amazon →

Prices are synced live from UK retailers. Not every product will be stocked by every retailer; older models may only be available second hand.

Value & Depreciation

£3499

Launch price

→

£2999

Today

14%

Value drop

Over ~6 years, this camera has cost roughly £83/year to own (buy at launch price, sell today). That's one of the lower cost-per-year cameras in its class.

Core

Released

2020

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

Select up to 2 cameras to compare against the A7S III. It's always pinned as the baseline.

Select 1–3 cameras to compare

Who should buy this

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

GearScore™ — Suitability 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. See our full methodology →