Sony · Camera History
Sony A7S Series
Sony's low-light and video specialist full-frame line
Sony's sensitivity-focused full-frame mirrorless line — featuring low megapixel counts, extraordinary high ISO performance, and best-in-class low-light video capability. The A7S series is the benchmark for available light cinematography.
1
Generation 1
Sony A7S II
12MP
4K/30p internal (full sensor readout), 1080p/120p, S-Log2/S-Log3
169 phase-detect + 25 contrast AF — limited by modern standards
5-axis IBIS — 4.5 stops (first Sony mirrorless with IBIS)
5fps continuous
~370 shots (CIPA)
Weather sealed
584g body only
2
Current generation
Sony A7S III
12MP
4K/120p 10-bit, 4K/60p 10-bit S-Cinetone/S-Log3, 1080p/240p
Phase-detect, 759 points, real-time Eye AF (human & animal), subject recognition
5.5-stop IBIS
10fps mechanical
~600 shots (CIPA) / ~70min continuous 4K recording
Weather sealed
699g (body, battery, card)
What's new in this generation
- Stabilisation improved (5.5-stop IBIS)
- Burst rate: 10fps mechanical
- Video: 4K/120p 10-bit, 4K/60p 10-bit S-Cinetone/S-Log3, 1080p/240p
- Price: +£2,200 vs previous
All generations at a glance
| Spec | A7S II (2015) | A7S III (2020) |
|---|---|---|
| Price | £799 | £2999 |
| Resolution | 12MP | 12MP |
| Video | 4K/30p internal (full sensor readout), 1080p/120p, S-Log2/S-Log3 | 4K/120p 10-bit, 4K/60p 10-bit S-Cinetone/S-Log3, 1080p/240p |
| Stabilisation | 5-axis IBIS — 4.5 stops (first Sony mirrorless with IBIS) | 5.5-stop IBIS |
| Burst Rate | 5fps continuous | 10fps mechanical |
| Battery | ~370 shots (CIPA) | ~600 shots (CIPA) / ~70min continuous 4K recording |
| Weather Sealed | Yes | Yes |
| Weight | 584g body only | 699g (body, battery, card) |