Sony FE 24-50mm F2.8 G vs Sony FE 20-70mm F4 G
Sony E-Mount
Both are compact G zooms for Sony E full frame without built-in stabilization, but with different priorities. The FE 24-50mm f/2.8 G (February 2024) offers constant f/2.8 at only 440 g and 67 mm filters, but covers only 24 to 50 mm. The FE 20-70mm f/4 G (2023) starts at 20 mm and reaches 70 mm, is a stop slower, weighs 488 g and takes 72 mm filters.
So the 20-70 gives much more room in focal length, the 24-50 more light at slightly less weight.
Which one suits whom?
- 24-50mm f/2.8: You want f/2.8 in a very compact body and can live with 50 mm at the long end.
- 20-70mm f/4: You want a wider range from 20 mm to 70 mm, for travel and landscape for example.
Key differences
- Focal length: 24-50 mm on the Sony FE 24-50mm F2.8 G, 20-70 mm on the Sony FE 20-70mm F4 G.
- The Sony FE 24-50mm F2.8 G is faster: f/2.8 instead of f/4, about 1 stops more light.
- The Sony FE 24-50mm F2.8 G is 48 g lighter (440 g vs 488 g).
- The Sony FE 24-50mm F2.8 G is 7 mm shorter.
- The Sony FE 24-50mm F2.8 G focuses closer: from 18 cm instead of 30 cm.
- Filter thread: 67 mm on the Sony FE 24-50mm F2.8 G, 72 mm on the Sony FE 20-70mm F4 G.
Specs side by side
The key specs of both lenses side by side.
| Lens | Sony FE 24-50mm F2.8 G | Sony FE 20-70mm F4 G |
|---|---|---|
| Focal length | 24-50 mm | 20-70 mm |
| Max. aperture | f/2.8 | f/4 |
| Weight | 440 g | 488 g |
| Filter diameter | 67 mm | 72 mm |
| Min. focus distance | 18 cm | 30 cm |
| Length | 92 mm | 99 mm |
| Autofocus | yes | yes |
| Image stabilization | no | no |
Size comparison
- Sony FE 24-50mm F2.8 G: 92 × 75 mm
- Sony FE 20-70mm F4 G: 99 × 79 mm
Side view to the same scale, length × diameter (without lens hood).