Photographer Cash's famous saying is: The depth of a character's inner thoughts and soul is sometimes expressed in an instant through his hands, eyes and body. The photographer must firmly grasp this slightest moment. Important moments that passed away. Yusuf Karsh, a world-renowned portrait photographer in the 20th century, specialized in photographing faces of the times. He photographed hundreds of portraits of important figures in the 20th century, including famous politicians, writers, poets, musicians, Painters, actors, and ordinary people are known as the "Rembrandt of photography."