Sony FE 50mm f/2.5 G vs Sigma 50mm f/2 DG Contemporary
Both are Sony E mount primes for street and everyday — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Sony FE 50mm f/2.5 G | Sigma 50mm f/2 DG Contemporary |
|---|---|---|
| Focal length | 50mm | 50mm |
| Max aperture | f/2.5 | f/2 |
| Type | prime | prime |
| Coverage | full-frame | full-frame |
| Mount | Sony E | Sony E |
Which should you buy?
- the Sigma 50mm f/2 DG Contemporary opens wider (f/2) — brighter in low light and more background blur
- the Sony FE 50mm f/2.5 G is first-party (Sony) for guaranteed full autofocus and in-camera corrections; the Sigma 50mm f/2 DG Contemporary is third-party — usually the value pick
Where to buy
Sony FE 50mm f/2.5 GSee price on Amazon
Sigma 50mm f/2 DG ContemporarySee price on Amazon
FAQ
What's the difference between the Sony FE 50mm f/2.5 G and the Sigma 50mm f/2 DG Contemporary?
The Sony FE 50mm f/2.5 G is 50mm f/2.5 prime, full-frame; the Sigma 50mm f/2 DG Contemporary is 50mm f/2 prime, full-frame. Both fit the Sony E mount.
Which is better in low light, the Sony FE 50mm f/2.5 G or the Sigma 50mm f/2 DG Contemporary?
The Sigma 50mm f/2 DG Contemporary — its f/2 maximum aperture lets in more light and gives more background blur than the f/2.5 of the other.
Do the Sony FE 50mm f/2.5 G and Sigma 50mm f/2 DG Contemporary 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 30mm f/1.4 DC DN Contemporary vs Sony FE 35mm f/1.4 GM · Sigma 35mm f/1.4 DG DN Art vs Sony FE 35mm f/1.4 GM · Sony FE 70-300mm f/4.5-5.6 G OSS vs Tamron 50-400mm f/4.5-6.3 Di III VC VXD · Tamron 20-40mm f/2.8 Di III VXD vs Sigma 20-60mm f/2.8-4 DG Contemporary · all Sony E lenses · all comparisons