Fujifilm XC 15-45mm F3.5-5.6 OIS PZ vs Sigma 18-50mm F2.8 DC DN | C for Fujifilm X Mount
Fujifilm X-Mount
A kit zoom and a fast third-party zoom for Fujifilm X that set different priorities. The XC 15-45mm f/3.5-5.6 OIS PZ (January 2018) has a motorized zoom, collapses to 44 mm, offers stabilization and weighs only 135 g. It starts at 15 mm, a bit wider. The Sigma 18-50mm f/2.8 DC DN Contemporary arrived in November 2022 for X mount and was the first Sigma zoom for it. It holds f/2.8 throughout, but has no stabilization and weighs 285 g.
So it is size, stabilization and 15 mm against constant f/2.8.
Which one suits whom?
- XC 15-45mm: You want the smallest, lightest setup with stabilization and a bit more wide angle.
- Sigma 18-50mm: You want constant f/2.8 for portraits, interiors and lower light and can do without stabilization and 15 mm.
Key differences
- Focal length: 15-45 mm on the Fujifilm XC 15-45mm F3.5-5.6 OIS PZ, 18-50 mm on the Sigma 18-50mm F2.8 DC DN | C for Fujifilm X Mount.
- The Sigma 18-50mm F2.8 DC DN | C for Fujifilm X Mount is faster: f/2.8 instead of f/3.5, about 0.7 stops more light.
- The Fujifilm XC 15-45mm F3.5-5.6 OIS PZ is 150 g lighter (135 g vs 285 g).
- The Fujifilm XC 15-45mm F3.5-5.6 OIS PZ is 33 mm shorter.
- Only the Fujifilm XC 15-45mm F3.5-5.6 OIS PZ has optical image stabilization.
- The Sigma 18-50mm F2.8 DC DN | C for Fujifilm X Mount focuses closer: from 12 cm instead of 13 cm.
- Filter thread: 52 mm on the Fujifilm XC 15-45mm F3.5-5.6 OIS PZ, 55 mm on the Sigma 18-50mm F2.8 DC DN | C for Fujifilm X Mount.
Specs side by side
The key specs of both lenses side by side.
| Lens | Fujifilm XC 15-45mm F3.5-5.6 OIS PZ | Sigma 18-50mm F2.8 DC DN | C for Fujifilm X Mount |
|---|---|---|
| Focal length | 15-45 mm | 18-50 mm |
| Max. aperture | f/3.5-5.6 | f/2.8 |
| Weight | 135 g | 285 g |
| Filter diameter | 52 mm | 55 mm |
| Min. focus distance | 13 cm | 12 cm |
| Length | 44 mm | 77 mm |
| Autofocus | yes | yes |
| Image stabilization | yes | no |
Size comparison
- Fujifilm XC 15-45mm F3.5-5.6 OIS PZ: 44 × 63 mm
- Sigma 18-50mm F2.8 DC DN | C for Fujifilm X Mount: 77 × 62 mm
Side view to the same scale, length × diameter (without lens hood).