Decision tools · Compare
120N vs A7S
Quick take: The 120N is the most affordable; only the A7S is weather sealed.
Different kinds of camera — their specs aren't comparable, so read the rows as facts, not a contest.
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 | 120NHolga | A7SSony · 2014 |
|---|---|---|
| Price | £17 usedBest | £303 used |
| Sensor | — | 12.2MP Full-Frame BSI CMOS |
| Resolution | — | 12.2MP |
| Video | — | 1080p/60p internal, 4K via HDMI (external recorder) |
| Autofocus | — | Contrast-detect AF, 25 points |
| Stabilisation | — | No stabilisation |
| Burst Rate | — | 5fps |
| Battery Life | — | ~370 shots (CIPA) |
| Weight | — | 474g (with battery and card) |
| Dimensions | — | 126.9 × 94.4 × 48.2mm |
| Weather Sealed | Not weather sealed | YesBest |
| Viewfinder | — | Electronic, 2.36M dots, 0.71× magnification |
| Screen | — | 3.0" tilting LCD, 1.23M dots |
| Mount | Fixed lens | Sony FE (full-frame E-mount) |
| Memory Cards | — | Single SD / MemoryStick PRO Duo slot |
| Connectivity | — | Multi/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
120N
A7S
Fun & simple
5.8/10
—
Portrait
—
5.3/10
Street
—
5.7/10
Travel
—
5.6/10
Wedding & Events
—
4.3/10
Filmmaking
—
5.9/10
Documentary
—
5.6/10
Sports & Action
—
4.8/10
Landscape
—
5.0/10
Wildlife
—
5.4/10
Casual
—
3.7/10
Food
—
4.9/10
Macro
—
4.3/10
Architecture
—
4.7/10
Astrophotography
—
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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