Sony FE 70-200mm f/2.8 GM OSS II vs Sigma 100-400mm f/5-6.3 DG DN OS
Both are Sony E mount zooms for telephoto and sports & action — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Sony FE 70-200mm f/2.8 GM OSS II | Sigma 100-400mm f/5-6.3 DG DN OS |
|---|---|---|
| Focal length | 70-200mm | 100-400mm |
| Max aperture | f/2.8 | f/5-6.3 |
| Type | zoom | zoom |
| Coverage | full-frame | full-frame |
| Mount | Sony E | Sony E |
Which should you buy?
- the Sony FE 70-200mm f/2.8 GM OSS II opens wider (f/2.8) — brighter in low light and more background blur
- the Sony FE 70-200mm f/2.8 GM OSS II covers 70-200mm and the Sigma 100-400mm f/5-6.3 DG DN OS covers 100-400mm — pick the range that matches what you shoot
- the Sony FE 70-200mm f/2.8 GM OSS II is first-party (Sony) for guaranteed full autofocus and in-camera corrections; the Sigma 100-400mm f/5-6.3 DG DN OS is third-party — usually the value pick
Where to buy
Check the Sony FE 70-200mm f/2.8 GM OSS II price on Amazon →
Check the Sigma 100-400mm f/5-6.3 DG DN OS price on Amazon →
FAQ
What's the difference between the Sony FE 70-200mm f/2.8 GM OSS II and the Sigma 100-400mm f/5-6.3 DG DN OS?
The Sony FE 70-200mm f/2.8 GM OSS II is 70-200mm f/2.8 zoom, full-frame; the Sigma 100-400mm f/5-6.3 DG DN OS is 100-400mm f/5-6.3 zoom, full-frame. Both fit the Sony E mount.
Which is better in low light, the Sony FE 70-200mm f/2.8 GM OSS II or the Sigma 100-400mm f/5-6.3 DG DN OS?
The Sony FE 70-200mm f/2.8 GM OSS II — its f/2.8 maximum aperture lets in more light and gives more background blur than the f/5-6.3 of the other.
Do the Sony FE 70-200mm f/2.8 GM OSS II and Sigma 100-400mm f/5-6.3 DG DN OS fit the same camera?
Yes — both are Sony E mount lenses, so they fit Sony a7/a9/a1 (full-frame) and a6000-series (APS-C).
More Sony E comparisons: Sony FE 50mm f/1.4 GM vs Sigma 50mm f/1.4 DG DN Art · Sony FE 40mm f/2.5 G vs Sony FE 50mm f/2.5 G · Sony E 15mm f/1.4 G vs Sigma 16mm f/1.4 DC DN Contemporary · Sony FE 20-70mm f/4 G vs Tamron 20-40mm f/2.8 Di III VXD · all Sony E lenses · all comparisons