Upgrade Guide
Sony FX3→Sony Sony FX5
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Worthwhile
Clear improvements over the FX3. Whether it justifies the cost depends on which upgrades matter most to your shooting.
What's new in the Sony FX5
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Resolution17MP vs 12MP (+5MP)
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Generation5 years newer (2026 vs 2021)
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 | FX3 | Sony FX5 | |
|---|---|---|---|
| Portrait | +1.2 | ||
| Street | +1.0 | ||
| Travel | +0.6 | ||
| Wedding & Events | +1.0 | ||
| Vlogging & Video | -0.1 | ||
| Filmmaking | -0.4 | ||
| Documentary | +0.3 | ||
| Sports & Action | +1.3 | ||
| Landscape | +0.4 | ||
| Wildlife | +1.0 | ||
| Casual | +0.3 | ||
| Food | +0.7 | ||
| Macro | -0.3 | ||
| Architecture | +0.9 | ||
| Astrophotography | — |
Full spec comparison
| Spec | FX3 | Sony FX5 | |
|---|---|---|---|
| Price | £3,799 | £4,699 | |
| Released | 2021 | 2026 | ↑ |
| Sensor | 12.1MP full-frame BSI Exmor R CMOS (same as A7S III) | 16.6MP full-frame stacked Exmor RS CMOS | |
| Resolution | 12MP | 17MP | ↑ |
| Video | 4K/120p, 4K/60p 10-bit, 12-bit RAW output, S-Log3, S-Cinetone | 5K/60p open-gate, 4K/120p, internal RAW/X-OCN, 10-bit Log, triple base ISO | |
| Autofocus | Real-time tracking with subject recognition (human, animal) | AI-powered hybrid phase-detect AF (759 points) with subject tracking | |
| Stabilisation | 5-axis IBIS — 5 stops | IBIS with Dynamic Active Mode | |
| Burst Rate | 10fps mechanical, 10fps electronic | 10fps | |
| Battery Life | ~640 shots (CIPA) | ~105 min actual recording, ~170 min continuous (LCD) | ↓ |
| Weight | 715g (body only) | 734g (with battery and card) | ↓ |
| Weather Sealed | Yes | Yes | |
| Viewfinder | None — monitor/external EVF use only | Optional detachable EVF (DVF-EL1), OLED | |
| Screen | 3.0" touchscreen, fully articulating | Fully articulating touchscreen (4-axis arm) | |
| Mount | Sony FE mount (full-frame E-mount) | Sony E-mount | |
| Memory Cards | Dual CFexpress Type A / SD UHS-II slots | CFexpress Type A + SDXC (dual) |
Compare side-by-side
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