This lens hood is specifically designed for the Sigma 18-50 mm f/2.8 DC DN Contemporary lens.

The JJC LH-582-02 Sigma Lens Hood is specially designed for the Sigma 18-50mm f/2.8 DC DN Contemporary lens. By pulling the lens head outwards, you can block stray light from entering the lens. The hood is equipped with an anti-reflective, matte finish on the inside to prevent lens flare.
Allows the use of a filter
Warranty: 2 years