Sony FE 28-70mm f/2 GM vs Sigma 28-45mm f/1.8 DG DN Art
Both are Sony E mount zooms for pro standard zoom and low-light — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Sony FE 28-70mm f/2 GM | Sigma 28-45mm f/1.8 DG DN Art |
|---|---|---|
| Focal length | 28-70mm | 28-45mm |
| Max aperture | f/2 | f/1.8 |
| Type | zoom | zoom |
| Coverage | full-frame | full-frame |
| Mount | Sony E | Sony E |
Which should you buy?
- the Sigma 28-45mm f/1.8 DG DN Art opens wider (f/1.8) — brighter in low light and more background blur
- the Sony FE 28-70mm f/2 GM covers 28-70mm and the Sigma 28-45mm f/1.8 DG DN Art covers 28-45mm — pick the range that matches what you shoot
- the Sony FE 28-70mm f/2 GM is first-party (Sony) for guaranteed full autofocus and in-camera corrections; the Sigma 28-45mm f/1.8 DG DN Art is third-party — usually the value pick
Where to buy
Check the Sony FE 28-70mm f/2 GM price on Amazon →
Check the Sigma 28-45mm f/1.8 DG DN Art price on Amazon →
FAQ
What's the difference between the Sony FE 28-70mm f/2 GM and the Sigma 28-45mm f/1.8 DG DN Art?
The Sony FE 28-70mm f/2 GM is 28-70mm f/2 zoom, full-frame; the Sigma 28-45mm f/1.8 DG DN Art is 28-45mm f/1.8 zoom, full-frame. Both fit the Sony E mount.
Which is better in low light, the Sony FE 28-70mm f/2 GM or the Sigma 28-45mm f/1.8 DG DN Art?
The Sigma 28-45mm f/1.8 DG DN Art — its f/1.8 maximum aperture lets in more light and gives more background blur than the f/2 of the other.
Do the Sony FE 28-70mm f/2 GM and Sigma 28-45mm f/1.8 DG DN Art 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