Lens Comparison
Sigma 28-45mm f/1.8 DG DN Art vs Sony FE 20-70mm f/4 G
Key Differences
- Sigma 28-45mm f/1.8 DG DN Art has a better maximum aperture (f/1.8 vs f/4).
- Sony FE 20-70mm f/4 G has a better weight (488g (1.08 lb) vs 1020g (2.25 lb)).
- Sony FE 20-70mm f/4 G has a better length (99mm vs 149.2mm).
- Sigma 28-45mm f/1.8 DG DN Art has a better min focus distance (20 cm vs 25 cm).
- Sony FE 20-70mm f/4 G has a better max magnification (0.39x vs 0.26x).
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 28-45mm | 20-70mm |
| Lens Type | Zoom | Zoom |
| Optical Elements | − | 16 |
| Optical Groups | − | 13 |
| Aperture & Iris | ||
| Maximum Aperture | f/1.8 | f/4 |
| Minimum Aperture | f/16 | f/22 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Sony E | Sony E |
| Angle of View | − | 94° – 34° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | HLA | XD Linear |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 20 cm | 25 cm |
| Max Magnification | 0.26x | 0.39x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | Yes | Yes |
| Declickable Aperture | Yes | Yes |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $1,099 | $1,099 |
| Filter Size | 82mm | 72mm |
| Diameter | 92mm | 78.7mm |
| Length | 149.2mm | 99mm |
| Weight | 1020g (2.25 lb) | 488g (1.08 lb) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | No |
