Decision tools · Compare

120N vs A7S II

Quick take: The 120N is the most affordable; only the A7S II 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.

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 120NHolgaA7S IISony · 2015
Price £29Best£799
Sensor —12.1MP full-frame BSI Exmor CMOS
Resolution —12.1MP
Video —4K/30p internal (full sensor readout), 1080p/120p, S-Log2/S-Log3
Autofocus —Contrast-detect AF, 169 points; limited by modern standards
Stabilisation —5-axis IBIS — 4.5 stops (first Sony mirrorless with IBIS)
Burst Rate —5fps continuous
Battery Life —~370 shots (CIPA)
Weight —584g (body only)
Dimensions —126.9 × 95.7 × 60.3mm
Weather Sealed Not weather sealedYesBest
Viewfinder —EVF, 2.36M dots, 0.71× magnification
Screen —3.0" tilting LCD, 1.23M dots
Mount Fixed lensSony FE mount (full-frame E-mount)
Memory Cards —Dual SD UHS-I slots
Connectivity —USB Micro-B, Bluetooth (via app), Wi-Fi, 3.5mm mic jack

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 II
Fun & simple
7.2/10
—
Portrait
—
5.8/10
Street
—
5.3/10
Travel
—
5.2/10
Wedding & Events
—
5.6/10
Filmmaking
—
6.2/10
Documentary
—
5.8/10
Sports & Action
—
5.2/10
Landscape
—
5.0/10
Wildlife
—
5.6/10
Casual
—
3.5/10
Food
—
5.2/10
Macro
—
4.8/10
Architecture
—
4.8/10
Astrophotography
—
6.8/10

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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