Sony FE 28-70mm F2 GM vs Sigma 28-70mm F2.8 DG DN | Contemporary 021
Side-by-side comparison from our catalogue data. Better values are highlighted only where a clear difference exists.
Verdict at a glance
- Sony FE 28-70mm F2 GM is faster by 1 stop (f/2.0 vs f/2.8), letting in more light.
- Sigma 28-70mm F2.8 DG DN | Contemporary 021 is lighter by 448g.
| Spec | FE 28-70mm F2 GM | 28-70mm F2.8 DG DN | Contemporary 021 |
|---|---|---|
| Brand | Sony | Sigma |
| Mount | Sony E | Sony E |
| Type | Zoom | Zoom |
| Focal length | 28-70mm | 28-70mm |
| Max aperture | f/2.0 (faster) | f/2.8 |
| Released | 2024 | n/a |
| Format | full-frame | full-frame |
| Weight g | 918.0 | 470 (lighter) |
| Filter mm | 86 | 67 |
| Length mm | 139.8 | n/a |
| Diameter mm | 92.9 | n/a |
| Min focus m | 0.38 | 0.19 (closer focusing) |
| Max magnification | 0.23 | 0.3 |
| Blades | n/a | 9 |
| Groups | n/a | 12 |
| Af motor | n/a | Stepping motor |
| Elements | n/a | 16 |
Sony FE 28-70mm F2 GM
Fast standard zoom for full-frame E-mount offering a constant f/2 aperture across 28-70mm. It is intended to cover several prime focal lengths in one lens.
Pros
- f/2 across the whole zoom range
- Wider aperture than a 24-70mm f/2.8
- Linear focus motors
Cons
- Heavier than f/2.8 zooms at about 918 g
- Starts at 28mm
Sigma 28-70mm F2.8 DG DN | Contemporary 021
Compact f/2.8 standard zoom for full-frame mirrorless from Sigma's Contemporary line. It weighs about 470 g and starts at 28mm.
Pros
- Constant f/2.8 in a small body
- Light at about 470 g
- Close focus to 0.19 m
Cons
- Starts at 28mm
- No stabilization