Upgrade Guide
Sony A7S→Sony A1 II
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Worthwhile
Clear improvements over the A7S. Whether it justifies the cost depends on which upgrades matter most to your shooting.
What's new in the A1 II
-
Resolution50MP vs 12MP (+38MP)
-
StabilisationIBIS added — significant for handheld and video
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Burst rate30fps electronic (with full AF/AE), 10fps mechanical vs 5fps
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Battery life~530 shots (CIPA) vs ~370 shots (CIPA)
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Generation11 years newer (2025 vs 2014)
Suitability by genre
| Genre | A7S | A1 II | |
|---|---|---|---|
| Astrophotography | — | ||
| Vlogging & Video | +1.5 | ||
| Street | — | ||
| Travel | — | ||
| Portrait | +2.0 | ||
| Landscape | +3.0 | ||
| Sports & Action | — | ||
| Sports | — | ||
| Wildlife | — |
Full spec comparison
| Spec | A7S | A1 II | |
|---|---|---|---|
| Price | £600 | £6,500 | |
| Released | 2014 | 2025 | ↑ |
| Sensor | 12.2MP Full-Frame BSI CMOS | 50.1MP full-frame stacked BSI CMOS | |
| Resolution | 12MP | 50MP | ↑ |
| Video | 1080p/60p internal, 4K via HDMI (external recorder) | 8K/30p, 4K/120p 10-bit, 4K/240p super slow-motion | |
| Autofocus | Phase-detect / contrast-detect hybrid AF | AI subject recognition — human, animal, bird, insect, vehicle, aircraft, train | |
| Stabilisation | None | 8.5-stop IBIS (with in-lens OSS) | |
| Burst Rate | 5fps | 30fps electronic (with full AF/AE), 10fps mechanical | ↑ |
| Battery Life | ~370 shots (CIPA) | ~530 shots (CIPA) | ↑ |
| Weight | 474g (with battery and card) | 743g body only | ↓ |
| Weather Sealed | Yes | Yes | |
| Viewfinder | Electronic, 2.36M dots, 0.71× magnification | EVF 0.9× 9.44M-dot — the highest resolution EVF available | |
| Screen | 3.0" tilting LCD, 1.23M dots | 3.2" fully articulating touchscreen, 2.1M dots | |
| Mount | Sony FE (full-frame E-mount) | Sony E-mount (full-frame) | |
| Memory Cards | Single SD / MemoryStick PRO Duo slot | Dual CFexpress Type A / SD UHS-II slots |
Compare side-by-side
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