The Sigma 100-300mm f/4 EX DG HSM is a high-performance telephoto zoom lens designed for professional photographers who require a longer reach than a standard 70-200mm without sacrificing a constant aperture.
| Focal_Length | 100-300mm |
| Lens_Mount | Nikon F-Mount (FX Format) |
| Maximum_Aperture | f/4 |
| Minimum_Aperture | f/32 |
| Minimum_Focus_Distance | 1.8m (5.91 ft) |
| Filter_Thread_Size | 82mm |
| Weight | 1440g (3.17 lbs) |
| Diaphragm_Blades | 9 |
Yes, it is compatible with Nikon Z-series cameras when used with the Nikon FTZ or FTZ II mount adapter, though autofocus speed may vary compared to native Z lenses.
The Sigma 100-300mm f/4 EX DG HSM features a professional build but lacks modern rubber gaskets for full weather sealing. It is advised to use a rain cover in wet conditions.
Internal zooming means the lens does not physically extend when changing focal lengths, which prevents dust from being sucked into the barrel and maintains a consistent center of gravity.