Sony FE 100-400mm f/4.5 GM OSS vs Sigma 300-600mm f/4 DG OS Sports
Both are Sony E mount zooms for sports & action and wildlife — 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 GM OSS | Sigma 300-600mm f/4 DG OS Sports |
|---|---|---|
| Focal length | 100-400mm | 300-600mm |
| Max aperture | f/4.5 | f/4 |
| Type | zoom | zoom |
| Coverage | full-frame | full-frame |
| Mount | Sony E | Sony E |
Which should you buy?
- the Sigma 300-600mm f/4 DG OS Sports opens wider (f/4) — brighter in low light and more background blur
- the Sony FE 100-400mm f/4.5 GM OSS covers 100-400mm and the Sigma 300-600mm f/4 DG OS Sports covers 300-600mm — pick the range that matches what you shoot
- the Sony FE 100-400mm f/4.5 GM OSS is first-party (Sony) for guaranteed full autofocus and in-camera corrections; the Sigma 300-600mm f/4 DG OS Sports is third-party — usually the value pick
Where to buy
Sony FE 100-400mm f/4.5 GM OSSSee price on Amazon
Sigma 300-600mm f/4 DG OS SportsSee price on Amazon
FAQ
What's the difference between the Sony FE 100-400mm f/4.5 GM OSS and the Sigma 300-600mm f/4 DG OS Sports?
The Sony FE 100-400mm f/4.5 GM OSS is 100-400mm f/4.5 zoom, full-frame; the Sigma 300-600mm f/4 DG OS Sports is 300-600mm f/4 zoom, full-frame. Both fit the Sony E mount.
Which is better in low light, the Sony FE 100-400mm f/4.5 GM OSS or the Sigma 300-600mm f/4 DG OS Sports?
The Sigma 300-600mm f/4 DG OS Sports — its f/4 maximum aperture lets in more light and gives more background blur than the f/4.5 of the other.
Do the Sony FE 100-400mm f/4.5 GM OSS and Sigma 300-600mm f/4 DG OS Sports 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/5.6-8 OSS vs Sony FE 400-800mm f/6.3-8 G OSS · Sony FE 100-400mm f/5.6-8 OSS vs Sigma 300-600mm f/4 DG OS Sports · all Sony E lenses · all comparisons