Upgrade Guide
Sony A1→Sony A5100
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Skip it
The A5100 offers little measurable spec improvement over the A1. Spend the money on glass instead.
Unchanged or similar
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Resolution24MP (down from 50MP — optimised for low light)
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Weather sealingNot present in new body
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StabilisationIBIS not present in new body
Suitability by genre
Base scores — computed from verified specs for an enthusiast shooting photo and video. The Upgrade Checker adjusts them for your skill level.
| Genre | A1 | A5100 | |
|---|---|---|---|
| Portrait | -2.8 | ||
| Street | +0.9 | ||
| Travel | +0.5 | ||
| Wedding & Events | -4.4 | ||
| Filmmaking | — | ||
| Documentary | -3.5 | ||
| Sports & Action | -4.1 | ||
| Landscape | -2.6 | ||
| Wildlife | -3.2 | ||
| Casual | +0.4 | ||
| Food | -1.5 | ||
| Macro | -2.1 | ||
| Architecture | -2.7 | ||
| Astrophotography | -2.1 | ||
| Vlogging & Video | — | ||
| Fun & simple | — |
Full spec comparison
| Spec | A1 | A5100 | |
|---|---|---|---|
| Price | £4,199 | £102 used | |
| Released | 2021 | 2014 | ↓ |
| Sensor | 50.1MP Full-Frame Stacked BSI CMOS Exmor RS | 24.3MP APS-C Exmor CMOS | |
| Resolution | 50MP | 24MP | ↓ |
| Video | 8K/30p, 4K/120p, 1080p/240p | 1080p/60p | |
| Autofocus | Real-time Tracking, AI subject recognition — 759 phase-detect points | Hybrid phase-detect / contrast-detect AF, face detection | |
| Stabilisation | IBIS — up to 5.5 stops | No stabilisation | |
| Burst Rate | 30fps electronic with full AF/AE | 6fps | ↓ |
| Battery Life | ~430 shots (CIPA) | ~400 shots (CIPA) | ↓ |
| Weight | 737g (with battery and card) | 224g (body only) | ↑ |
| Weather Sealed | Yes | Not weather sealed | ↓ |
| Viewfinder | EVF, 9.44M dots, 0.90× magnification, 240fps | No viewfinder | |
| Screen | 3.0" fully tilting touchscreen | 3.0" flip-up touchscreen, 921k dots | |
| Mount | Sony FE mount (full-frame E-mount) | Sony E-mount | |
| Memory Cards | Dual CFexpress Type A / SD UHS-II | Single SD / MemoryStick PRO Duo slot |
Compare side-by-side
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Tell us what you shoot and we'll score the A5100 against your specific genres — not just specs.
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