Lens Comparison
Sigma 20mm f/2 DG DN Contemporary vs Sony E 15mm f/1.4 G
Key Differences
- Sony E 15mm f/1.4 G has a better min focus distance (12 cm vs 22 cm).
- Sony E 15mm f/1.4 G has a better weight (219g (7.7 oz) vs 370g (13.1 oz)).
- Sony E 15mm f/1.4 G has a better length (60.9mm vs 90.5mm).
- Sony E 15mm f/1.4 G has a better maximum aperture (f/1.4 vs f/2).
- Sony E 15mm f/1.4 G has a better max magnification (0.26x vs 0.19x).
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 20mm | 15mm |
| Lens Type | Prime | Prime |
| Optical Elements | 13 | 9 |
| Optical Groups | 11 | 7 |
| Aperture & Iris | ||
| Maximum Aperture | f/2 | f/1.4 |
| Minimum Aperture | f/16 | f/16 |
| Aperture Blades | 9 | 9 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | APS-C |
| Lens Mount | Sony E | Sony E |
| Angle of View | − | − |
| 35mm Equivalent | − | 23-23mm |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | HLA | Linear |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | No |
| Min Focus Distance | 22 cm | 12 cm |
| Max Magnification | 0.19x | 0.26x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | Yes | No |
| Declickable Aperture | Yes | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $549 | $549 |
| Filter Size | 67mm | 55mm |
| Diameter | 74.8mm | 66.6mm |
| Length | 90.5mm | 60.9mm |
| Weight | 370g (13.1 oz) | 219g (7.7 oz) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | No |
