Sony FE 135mm f/1.8 GM vs Sigma 135mm f/1.4 DG Art
Both are Sony E mount primes for portrait and telephoto — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Sony FE 135mm f/1.8 GM | Sigma 135mm f/1.4 DG Art |
|---|---|---|
| Focal length | 135mm | 135mm |
| Max aperture | f/1.8 | f/1.4 |
| Type | prime | prime |
| Coverage | full-frame | full-frame |
| Mount | Sony E | Sony E |
Which should you buy?
- the Sigma 135mm f/1.4 DG Art opens wider (f/1.4) — brighter in low light and more background blur
- the Sony FE 135mm f/1.8 GM is first-party (Sony) for guaranteed full autofocus and in-camera corrections; the Sigma 135mm f/1.4 DG Art is third-party — usually the value pick
Where to buy
Sony FE 135mm f/1.8 GMSee price on Amazon
Sigma 135mm f/1.4 DG ArtSee price on Amazon
FAQ
What's the difference between the Sony FE 135mm f/1.8 GM and the Sigma 135mm f/1.4 DG Art?
The Sony FE 135mm f/1.8 GM is 135mm f/1.8 prime, full-frame; the Sigma 135mm f/1.4 DG Art is 135mm f/1.4 prime, full-frame. Both fit the Sony E mount.
Which is better in low light, the Sony FE 135mm f/1.8 GM or the Sigma 135mm f/1.4 DG Art?
The Sigma 135mm f/1.4 DG Art — its f/1.4 maximum aperture lets in more light and gives more background blur than the f/1.8 of the other.
Do the Sony FE 135mm f/1.8 GM and Sigma 135mm f/1.4 DG 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).
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