Sony FE 20-70mm f/4 G vs Sony FE 28-70mm f/2 GM
Both are Sony E mount zooms for everyday — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Sony FE 20-70mm f/4 G | Sony FE 28-70mm f/2 GM |
|---|---|---|
| Focal length | 20-70mm | 28-70mm |
| Max aperture | f/4 | f/2 |
| Type | zoom | zoom |
| Coverage | full-frame | full-frame |
| Mount | Sony E | Sony E |
Which should you buy?
- the Sony FE 28-70mm f/2 GM opens wider (f/2) — brighter in low light and more background blur
- the Sony FE 20-70mm f/4 G covers 20-70mm and the Sony FE 28-70mm f/2 GM covers 28-70mm — pick the range that matches what you shoot
Where to buy
Check the Sony FE 20-70mm f/4 G price on Amazon →
Check the Sony FE 28-70mm f/2 GM price on Amazon →
FAQ
What's the difference between the Sony FE 20-70mm f/4 G and the Sony FE 28-70mm f/2 GM?
The Sony FE 20-70mm f/4 G is 20-70mm f/4 zoom, full-frame; the Sony FE 28-70mm f/2 GM is 28-70mm f/2 zoom, full-frame. Both fit the Sony E mount.
Which is better in low light, the Sony FE 20-70mm f/4 G or the Sony FE 28-70mm f/2 GM?
The Sony FE 28-70mm f/2 GM — its f/2 maximum aperture lets in more light and gives more background blur than the f/4 of the other.
Do the Sony FE 20-70mm f/4 G and Sony FE 28-70mm f/2 GM 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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