Upgrade Guide
Sony SLT-A99→Sony A6100
Is it worth upgrading? Spec analysis, key improvements, and our verdict.
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Worthwhile
Clear improvements over the SLT-A99. Whether it justifies the cost depends on which upgrades matter most to your shooting.
What's new in the A6100
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Burst rate11fps vs 6fps with continuous AF (10fps in crop mode)
-
Generation7 years newer (2019 vs 2012)
Unchanged or similar
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ResolutionSimilar (24MP)
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 | SLT-A99 | A6100 | |
|---|---|---|---|
| Portrait | +0.3 | ||
| Street | +2.0 | ||
| Travel | +1.5 | ||
| Wedding & Events | -0.9 | ||
| Vlogging & Video | +1.9 | ||
| Documentary | +0.6 | ||
| Sports & Action | +1.3 | ||
| Landscape | -0.3 | ||
| Wildlife | +1.8 | ||
| Casual | +3.0 | ||
| Food | +0.6 | ||
| Macro | +0.8 | ||
| Architecture | — | ||
| Astrophotography | +0.5 | ||
| Filmmaking | — |
Full spec comparison
| Spec | SLT-A99 | A6100 | |
|---|---|---|---|
| Price | £454 used | £649 | |
| Released | 2012 | 2019 | ↑ |
| Sensor | 24.3MP full-frame sensor | APS-C Exmor CMOS | |
| Resolution | 24MP | 24MP | ↓ |
| Video | Full HD 1080p/60 | 4K 30fps | |
| Autofocus | 19-point phase-detect (11 cross) via the translucent mirror + 102-point on-sensor phase assist, face detection | 425-point phase-detect, real-time tracking | |
| Stabilisation | 4.5-stop sensor-shift SteadyShot INSIDE | No stabilisation | |
| Burst Rate | 6fps with continuous AF (10fps in crop mode) | 11fps | ↑ |
| Battery Life | ~500 shots (CIPA) | 420 shots (CIPA) | ↓ |
| Weight | 812g (with battery and card) | 396g (body only) | ↑ |
| Weather Sealed | Not weather sealed | Not weather sealed | |
| Viewfinder | OLED EVF, 2.36M dots, 100%, 0.71x | EVF 0.39" 1.44M-dot | |
| Screen | 3.0" three-way tilting / swivel LCD, 1.23M dots | 3.0" tilting touchscreen, 921k-dot | |
| Mount | Sony A-mount | Sony E-Mount | |
| Memory Cards | Dual slots: SD / Memory Stick + SD | SD UHS-I / Memory Stick |
Compare side-by-side
⚖️ Compare these cameras
See SLT-A99 and A6100 next to each other with our interactive comparison tool.
Get a personalised upgrade score
Run the upgrade checker →
Tell us what you shoot and we'll score the A6100 against your specific genres — not just specs.
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