Lens Comparison
Sony FE 20-70mm f/4 G vs Sony FE 28-70mm f/2 GM
Key Differences
- Sony FE 20-70mm f/4 G has a better price (msrp) ($1,099 vs $2,899).
- Sony FE 28-70mm f/2 GM has a better maximum aperture (f/2 vs f/4).
- Sony FE 20-70mm f/4 G has a better weight (488g (1.08 lb) vs 918g (2.02 lb)).
- Sony FE 20-70mm f/4 G has a better min focus distance (25 cm vs 38 cm).
- Sony FE 20-70mm f/4 G has a better length (99mm vs 139.8mm).
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 20-70mm | 28-70mm |
| Lens Type | Zoom | Zoom |
| Optical Elements | 16 | 20 |
| Optical Groups | 13 | 14 |
| Aperture & Iris | ||
| Maximum Aperture | f/4 | f/2 |
| Minimum Aperture | f/22 | f/22 |
| Aperture Blades | 9 | 11 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Sony E | Sony E |
| Angle of View | 94° – 34° | 75° – 34° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | XD Linear | XD Linear |
| Focus Limiter | No | No |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 25 cm | 38 cm |
| Max Magnification | 0.39x | 0.23x |
| Stabilization & Video | ||
| Optical Stabilization | No | No |
| Aperture Ring | Yes | Yes |
| Declickable Aperture | Yes | Yes |
| Parfocal | No | No |
| Internal Zoom | No | Yes |
| General | ||
| Price (MSRP) | $1,099 | $2,899 |
| Filter Size | 72mm | 86mm |
| Diameter | 78.7mm | 92.9mm |
| Length | 99mm | 139.8mm |
| Weight | 488g (1.08 lb) | 918g (2.02 lb) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | No | No |
