Decision tools · Compare

A1 vs A7S

Quick take: The A1 has the highest resolution at 50MP; the A7S is the most affordable.

16 specs side by side·14 genres scored·UK prices from Wex Photo Video and Clifton Cameras

How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.

Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more

Verdictwhich should you buy?

A1 — Professional Sport, Wildlife, Portrait & Hybrid Shooting: 50MP, 30fps, 8K — the Sony A1 is the most complete professional camera ever made.

A7S — Astrophotography & Low-Light: The original A7S pioneered the concept of a camera optimised entirely for low light. Its 12.2MP sensor has enormous photosites — extraordinary high-ISO performance that still holds up. Lacking IBIS and limited to 1080p internally (4K requires external recorder), it is a specialist tool. For astrophotography, event videography, or any scenario where light is genuinely scarce, it remains outstanding.

Who should buy what
A1 (2021)
is the right camera for you if…
  • Professional photographers who need resolution and speed without compromise
  • Sports and wildlife photographers demanding the absolute fastest Sony
  • Studio and fashion photographers who also shoot sport or events
  • A9 III or A7R V owners who want a single body that does everything
A7S (2014)
is the right camera for you if…
  • Astrophotographers
  • Low-light event videographers
  • Filmmakers needing clean high-ISO footage
Full specificationsthe better value in each row is highlighted
Specification A1Sony · 2021A7SSony · 2014
Price £4,199£303 usedBest
Sensor 50.1MP Full-Frame Stacked BSI CMOS Exmor RS12.2MP Full-Frame BSI CMOS
Resolution 50.1MPBest12.2MP
Video 8K/30p, 4K/120p, 1080p/240p1080p/60p internal, 4K via HDMI (external recorder)
Autofocus Real-time Tracking, AI subject recognition — 759 phase-detect pointsContrast-detect AF, 25 points
Stabilisation IBIS — up to 5.5 stopsNo stabilisation
Burst Rate 30fps electronic with full AF/AEBest5fps
Battery Life ~430 shots (CIPA)Best~370 shots (CIPA)
Weight 737g (with battery and card)474g (with battery and card)Best
Dimensions 128.9 × 96.9 × 80.8mm126.9 × 94.4 × 48.2mm
Weather Sealed YesYes
Viewfinder EVF, 9.44M dots, 0.90× magnification, 240fpsElectronic, 2.36M dots, 0.71× magnification
Screen 3.0" fully tilting touchscreen3.0" tilting LCD, 1.23M dots
Mount Sony FE mount (full-frame E-mount)Sony FE (full-frame E-mount)
Memory Cards Dual CFexpress Type A / SD UHS-IISingle SD / MemoryStick PRO Duo slot
Connectivity USB-C, Wi-Fi 5GHz, Bluetooth, Ethernet, HDMIMulti/Micro USB, Wi-Fi, NFC

Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.

How they score by genreengine base scores out of 10
Genre
A1
A7S
Portrait
8.2/10
5.3/10
Street
6.1/10
5.7/10
Travel
5.9/10
5.6/10
Wedding & Events
7.9/10
4.3/10
Filmmaking
7.8/10
5.9/10
Documentary
7.6/10
5.6/10
Sports & Action
8.8/10
4.8/10
Landscape
7.6/10
5.0/10
Wildlife
8.7/10
5.4/10
Casual
4.8/10
3.7/10
Food
7.4/10
4.9/10
Macro
7.3/10
4.3/10
Architecture
7.9/10
4.7/10
Astrophotography
6.8/10
6.0/10

Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →

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