Sony E 10-20mm F4 PZ G vs Sigma 10-18mm F2.8 DC DN
Sony E-Mount
Both are ultra-wide zooms for Sony E-mount APS-C cameras, built around different ideas. The Sony E PZ 10-20 G (June 2022) has a power zoom, keeps the same length while zooming and focusing and weighs just 178 g. Its aperture is a constant f/4. The Sigma 10-18 f/2.8 DC DN (Contemporary, October 2023) is, according to Sigma, the smallest and lightest f/2.8 ultra-wide zoom for APS-C. It is a stop faster, but at 255 g about 70 g heavier.
In return the Sony offers 2 mm more at the long end (20 instead of 18 mm), while the Sigma offers the wider aperture.
Which one suits whom?
- Sony 10-20: You shoot a lot of video or vlog, want the power zoom and as little weight as possible.
- Sigma 10-18: You shoot in low light, for example interiors or the night sky, and need f/2.8.
Key differences
- Focal length: 10-20 mm on the Sony E 10-20mm F4 PZ G, 10-18 mm on the Sigma 10-18mm F2.8 DC DN.
- The Sigma 10-18mm F2.8 DC DN is faster: f/2.8 instead of f/4, about 1 stops more light.
- The Sony E 10-20mm F4 PZ G is 77 g lighter (178 g vs 255 g).
- The Sony E 10-20mm F4 PZ G is 9 mm shorter.
- The Sigma 10-18mm F2.8 DC DN focuses closer: from 12 cm instead of 13 cm.
- Filter thread: 62 mm on the Sony E 10-20mm F4 PZ G, 67 mm on the Sigma 10-18mm F2.8 DC DN.
Specs side by side
The key specs of both lenses side by side.
| Lens | Sony E 10-20mm F4 PZ G | Sigma 10-18mm F2.8 DC DN |
|---|---|---|
| Focal length | 10-20 mm | 10-18 mm |
| Max. aperture | f/4 | f/2.8 |
| Weight | 178 g | 255 g |
| Filter diameter | 62 mm | 67 mm |
| Min. focus distance | 13 cm | 12 cm |
| Length | 55 mm | 64 mm |
| Autofocus | yes | yes |
| Image stabilization | no | no |
Size comparison
- Sony E 10-20mm F4 PZ G: 55 × 70 mm
- Sigma 10-18mm F2.8 DC DN: 64 × 72 mm
Side view to the same scale, length × diameter (without lens hood).