Sigma 45mm F2.8 DGvsSony FE 28-70mm F3.5-5.6 OSS
45mm F2.8 DG
45mm / F2.8
—
FE 28-70mm F3.5-5.6 OSS
28-70mm / F3.5-5.6
—
Which to choose
When the 45mm F2.8 DG suits you better
- Brightness0.6 stops brighter — better in low light and blurs the background more
- Weight60g lighter, so easier to carry
When the FE 28-70mm F3.5-5.6 OSS suits you better
- Zoom rangeCovers 28-70mm in a single lens
- StabilizationHas stabilization
These points are derived mechanically from the numbers. How a lens actually renders does not show up in specifications, so look at samples before deciding.
Size compared
- 45mm F2.8 DG48.2mm long × 64mm diameter
- FE 28-70mm F3.5-5.6 OSS83mm long × 72.5mm diameter
Specifications compared
| Specification | Sigma 45mm F2.8 DG | Sony FE 28-70mm F3.5-5.6 OSS | Difference |
|---|---|---|---|
| Focal length (wide) | 45mm | 28mm | +17mm |
| Focal length (tele) | 45mm | 70mm | −25mm |
| Max aperture (wide) | F2.8 | F3.5 | 0.6 stops brighter |
| Max aperture (tele) | F2.8 | F5.6 | 2.0 stops brighter |
| Min aperture | — | F22 | No data |
| Min focus distance | — | 30cm | No data |
| Max magnification | — | 0.19× | No data |
| Aperture blades | — | 7blades | No data |
| Weight | 235g | 295g | −60g |
| Length | 48.2mm | 83mm | −34.8mm |
| Diameter | 64mm | 72.5mm | −8.5mm |
| Filter size | 55mm | 55mm | — |
| Released | 2025 | 2013 | +12year |
| Stabilization | No | Yes | No |
| Weather sealing | Yes | Yes | — |
| Macro | No | No | — |
| Autofocus | Yes | Yes | — |
The difference column reads as 45mm F2.8 DG relative to FE 28-70mm F3.5-5.6 OSS.The highlighted cell is the better side for that specification.
Check prices
45mm F2.8 DG
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FE 28-70mm F3.5-5.6 OSS
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45mm F2.8 DG in detailFE 28-70mm F3.5-5.6 OSS in detailAll E-mount lenses