Designed to prevent unwanted stray light from entering the lens. Compatible with the ef 50 f 1.2L. Ef 200 f 2.8L ii usm. Ef 80 200 f 2.8L. And ef 200 f 2.8L usm lenses.
Designed to prevent unwanted stray light from entering the lens. Compatible with the ef 50 f 1.2L. Ef 200 f 2.8L ii usm. Ef 80