Decision tools · Compare
A7S vs Sony FX2
Quick take: The Sony FX2 has the highest resolution at 33MP; the A7S 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.
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Verdictwhich should you buy?
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
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 | A7SSony · 2014 | Sony FX2Sony · 2025 |
|---|---|---|
| Price | £600Best | £2,499 |
| Sensor | 12.2MP Full-Frame BSI CMOS | 33MP full-frame Exmor R CMOS |
| Resolution | 12.2MP | 33.0MPBest |
| Video | 1080p/60p internal, 4K via HDMI (external recorder) | 7K-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, 25 points | Hybrid phase-detect AF with subject tracking and auto-framing |
| Stabilisation | No stabilisation | Dynamic Active IBIS |
| Burst Rate | 5fps | 10fpsBest |
| Battery Life | ~370 shots (CIPA) | 600 shots (CIPA); ~100 min continuous videoBest |
| Weight | 474g (with battery and card)Best | 679g (body only) |
| Dimensions | 126.9 × 94.4 × 48.2mm | — |
| Weather Sealed | Yes | Yes |
| Viewfinder | Electronic, 2.36M dots, 0.71× magnification | Optional clip-on EVF, 3.68M dots |
| Screen | 3.0" tilting LCD, 1.23M dots | Fully articulating touchscreen |
| Mount | Sony FE (full-frame E-mount) | Sony E-mount |
| Memory Cards | Single SD / MemoryStick PRO Duo slot | Slot 1 CFexpress Type A / SD UHS-II, slot 2 SD UHS-II |
| Connectivity | Multi/Micro USB, Wi-Fi, NFC | USB-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
Sony FX2
Portrait
5.3/10
7.0/10
Street
5.7/10
5.3/10
Travel
5.8/10
6.4/10
Wedding & Events
4.3/10
6.8/10
Filmmaking
5.9/10
8.0/10
Documentary
5.6/10
7.7/10
Sports & Action
4.8/10
6.4/10
Landscape
5.0/10
5.7/10
Wildlife
5.4/10
6.6/10
Casual
3.6/10
5.1/10
Food
4.9/10
7.5/10
Macro
4.3/10
5.4/10
Architecture
4.7/10
6.8/10
Astrophotography
6.0/10
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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