Decision tools · Compare

A1 II vs A9

Quick take: The A1 II has the highest resolution at 50MP; the A9 is the most affordable.

16 specs side by side·15 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 II — Professional Sports, Wildlife & High-Resolution Studio Work: The most complete camera ever made — 50MP, 30fps, 8K, and the world's best EVF in a single flagship body.

A9 — Professional Sports, Wildlife & Action Photography: The camera that changed professional photography — the A9's 20fps blackout-free burst and silent shutter proved mirrorless had definitively surpassed the DSLR.

Who should buy what
A1 II (2024)
is the right camera for you if…
  • Professional sports and wildlife photographers who need 30fps, 50MP, and the best AF available
  • Commercial and advertising photographers who demand 50MP resolution alongside pro video specs
  • Photojournalists who need a single body capable of handling every assignment
  • Sony system shooters ready to invest in the absolute best
A9 (2017)
is the right camera for you if…
  • Sports photographers who want the original 20fps mirrorless at a lower used price than the A9 II
  • Wildlife photographers who need blackout-free burst with fast, reliable tracking
  • Sony FE system users who want a professional sports body
  • Photographers interested in the camera that changed the industry
Full specificationsthe better value in each row is highlighted
Specification A1 IISony · 2024A9Sony · 2017
Price £5,699£1,026 usedBest
Sensor 50.1MP full-frame stacked BSI CMOS24.2MP Full-Frame Stacked BSI CMOS Exmor RS
Resolution 50.1MPBest24.2MP
Video 8K/30p, 4K/120p 10-bit, S-Log34K/30p, 1080p/120p
Autofocus AI subject recognition — human, animal, bird, insect, vehicle, aircraft, train693 phase-detect + 25 contrast-detect, real-time eye/body tracking
Stabilisation 8.5-stop IBIS (with in-lens OSS)IBIS — 5-axis, up to 5 stops
Burst Rate 30fps electronic (with full AF/AE), 10fps mechanicalBest20fps (blackout-free, silent electronic shutter with full AF/AE)
Battery Life ~530 shots (CIPA)~650 shots (CIPA)Best
Weight 743g (body only)673g (with battery and card)Best
Dimensions 136.1 × 96.9 × 82.9mm126.9 × 95.6 × 63.0mm
Weather Sealed YesYes
Viewfinder EVF 0.9× 9.44M-dot — the highest resolution EVF availableEVF, OLED 3.69M dots, 0.78× magnification, 60fps refresh (blackout-free)
Screen 3.2" fully articulating touchscreen, 2.1M dots3.0" tilting touchscreen
Mount Sony E-mount (full-frame)Sony FE (full-frame E-mount)
Memory Cards Dual CFexpress Type A / SD UHS-II slotsDual SD UHS-II slots
Connectivity USB-C 3.2 Gen 2, Wi-Fi 6GHz, Bluetooth 5.3, HDMI full-sizeUSB, Wi-Fi 5GHz, Bluetooth, HDMI

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 II
A9
Portrait
9.0/10
7.5/10
Street
6.6/10
6.0/10
Travel
6.4/10
5.9/10
Wedding & Events
8.7/10
7.5/10
Vlogging & Video
6.4/10
—
Filmmaking
8.2/10
6.7/10
Documentary
8.3/10
6.8/10
Sports & Action
9.3/10
8.2/10
Landscape
8.0/10
6.1/10
Wildlife
9.2/10
8.2/10
Casual
5.3/10
4.6/10
Food
8.5/10
6.5/10
Macro
8.1/10
5.8/10
Architecture
8.4/10
6.0/10
Astrophotography
7.2/10
7.3/10

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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