Sony FE 100-400mm f/4.5-5.6 GM OSS vs Sony FE 70-200mm f/2.8 GM OSS II
Both are Sony E mount zooms for sports & action and telephoto — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Sony FE 100-400mm f/4.5-5.6 GM OSS | Sony FE 70-200mm f/2.8 GM OSS II |
|---|---|---|
| Focal length | 100-400mm | 70-200mm |
| Max aperture | f/4.5-5.6 | f/2.8 |
| 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 100-400mm f/4.5-5.6 GM OSS covers 100-400mm and the Sony FE 70-200mm f/2.8 GM OSS II covers 70-200mm — pick the range that matches what you shoot
Where to buy
Sony FE 100-400mm f/4.5-5.6 GM OSSSee price on Amazon
Sony FE 70-200mm f/2.8 GM OSS IISee price on Amazon
FAQ
What's the difference between the Sony FE 100-400mm f/4.5-5.6 GM OSS and the Sony FE 70-200mm f/2.8 GM OSS II?
The Sony FE 100-400mm f/4.5-5.6 GM OSS is 100-400mm f/4.5-5.6 zoom, full-frame; the Sony FE 70-200mm f/2.8 GM OSS II is 70-200mm f/2.8 zoom, full-frame. Both fit the Sony E mount.
Which is better in low light, the Sony FE 100-400mm f/4.5-5.6 GM OSS or the Sony FE 70-200mm f/2.8 GM OSS II?
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/4.5-5.6 of the other.
Do the Sony FE 100-400mm f/4.5-5.6 GM OSS and Sony FE 70-200mm f/2.8 GM OSS II 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: Sigma 18-50mm f/2.8 DC DN Contemporary vs Sony E 16-55mm f/2.8 G · Sigma 30mm f/1.4 DC DN Contemporary vs Sony FE 35mm f/1.4 GM · Sony FE 100-400mm f/4.5-5.6 GM OSS vs Sony FE 70-200mm f/4 Macro G OSS II · Sony FE 100-400mm f/4.5-5.6 GM OSS vs Tamron 70-180mm f/2.8 Di III VXD G2 · all Sony E lenses · all comparisons