A6100vs FE 100-400mm f/4.5-5.6 GM OSS
VS
Sony
FE 100-400mm f/4.5-5.6 GM OSS (2017)
Starting from £2499 new
Best for Wildlife, sports & birds in flight
View FE 100-400mm f/4.5-5.6 GM OSS
GearScore™ Verdict — Which should you buy?
Beginner, Family, Travel — A6100 (2019): Best autofocus in its class for the price.
Wildlife, Sports & Birds In Flight — FE 100-400mm f/4.5-5.6 GM OSS (2017): The benchmark wildlife and sports telephoto for Sony mirrorless — G Master quality with Dual XD tracking that locks onto subjects and holds them.
Who should buy what
A6100 (2019)
- First-time mirrorless buyers who want solid AF
- Families stepping up from a smartphone
Quick take: The a6100 is the most affordable; only the fe 100-400mm f/4.5-5.6 gm oss is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | A6100 (2019) | FE 100-400mm f/4.5-5.6 GM OSS (2017) |
|---|---|---|
| Price | £549 | £2,499 |
| Sensor | APS-C Exmor CMOS | f/4.5-5.6 (variable max aperture) |
| Resolution | 24.2MP | — |
| Video | 4K 30fps | 112cm minimum focus distance |
| Autofocus | 425-point phase-detect, real-time tracking | Dual XD linear motors — ultra-fast tracking for moving subjects |
| Stabilisation | None | 4.5-stop OSS (up to 5.5 stops combined with body IBIS) |
| Burst Rate | 11fps | N/A |
| Battery Life | 420 shots (CIPA) | N/A |
| Weight | 396g (body only) | 1395g |
| Dimensions | 119.9 × 66.9 × 59.4mm | 93.9mm diameter × 218mm length |
| Weather Sealed | No | Yes |
| Viewfinder | EVF 0.39" 1.44M-dot | N/A |
| Screen | 3.0" tilting touchscreen, 921k-dot | N/A |
| Mount | Sony E-Mount | Sony FE (full-frame E-mount) |
| Memory Cards | SD UHS-I / Memory Stick | N/A |
| Connectivity | Wi-Fi, Bluetooth 4.1, Micro USB, Micro HDMI | N/A |
Suitability by genre
| Genre | A6100 | FE 100-400mm f/4.5-5.6 GM OSS |
|---|---|---|
| Portrait | — | |
| Street | — | |
| Travel | — | |
| Casual | — | |
| Vlogging & Video | — | |
| Sports & Action | ||
| Wildlife | — | |
| Landscape | — |
More comparisons with A6100
Camera family history