- Brand
- Sigma
- Model
- 28-70mm f/2.8 DG DN Contemporary
- Mount
- Sony E
- Release year
- —
- Focal length
- 28–70mm
- Max aperture
- ƒ/2.8
- Crop factor (35mm-equiv.)
- 1.53×
- 35mm-equivalent focal length
- 43–107mm
- 35mm-equivalent aperture (DoF)
- ƒ/4.3
- Diagonal field of view
- 22.8–53.5°