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A7S II vs Sony FX2

Quick take: The Sony FX2 has the highest resolution at 33MP; the A7S II 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?

A7S II — Low-Light Video, Documentary & Available-Light Filmmaking: A landmark in mirrorless history — the first Sony with IBIS and internal 4K, its low-light video capability still impresses today at a used-market price.

Who should buy what
A7S II (2015)
is the right camera for you if…
  • Filmmakers and videographers who want legendary low-light performance at a used-price discount
  • Documentary shooters working in unpredictable available light conditions
  • A7S III shooters who want a second Sony FE body for backup or B-camera use
  • Budget-conscious video producers who want full-frame 4K with S-Log at an accessible price
Full specificationsthe better value in each row is highlighted
Specification A7S IISony · 2015Sony FX2Sony · 2025
Price £799Best£2,499
Sensor 12.1MP full-frame BSI Exmor CMOS33MP full-frame Exmor R CMOS
Resolution 12.1MP33.0MPBest
Video 4K/30p internal (full sensor readout), 1080p/120p, S-Log2/S-Log37K-oversampled 4K/30p full-frame, 4K/60p (Super 35 crop), 10-bit, dual base ISO Log, external 16-bit RAW via HDMI
Autofocus Contrast-detect AF, 169 points; limited by modern standardsHybrid phase-detect AF with subject tracking and auto-framing
Stabilisation 5-axis IBIS — 4.5 stops (first Sony mirrorless with IBIS)Dynamic Active IBIS
Burst Rate 5fps continuous10fpsBest
Battery Life ~370 shots (CIPA)600 shots (CIPA); ~100 min continuous videoBest
Weight 584g (body only)Best679g (body only)
Dimensions 126.9 × 95.7 × 60.3mm—
Weather Sealed YesYes
Viewfinder EVF, 2.36M dots, 0.71× magnificationOptional clip-on EVF, 3.68M dots
Screen 3.0" tilting LCD, 1.23M dotsFully articulating touchscreen
Mount Sony FE mount (full-frame E-mount)Sony E-mount
Memory Cards Dual SD UHS-I slotsSlot 1 CFexpress Type A / SD UHS-II, slot 2 SD UHS-II
Connectivity USB Micro-B, Bluetooth (via app), Wi-Fi, 3.5mm mic jackUSB-C, full-size HDMI, Wi-Fi, Bluetooth

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
A7S II
Sony FX2
Portrait
5.8/10
7.0/10
Street
5.3/10
5.3/10
Travel
5.4/10
6.4/10
Wedding & Events
5.6/10
6.8/10
Filmmaking
6.2/10
8.0/10
Documentary
5.8/10
7.7/10
Sports & Action
5.2/10
6.4/10
Landscape
5.0/10
5.7/10
Wildlife
5.6/10
6.6/10
Casual
3.5/10
5.1/10
Food
5.2/10
7.5/10
Macro
4.8/10
5.4/10
Architecture
4.8/10
6.8/10
Astrophotography
6.8/10
6.3/10
Vlogging & Video
—
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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