I recently went to LA and took these photos of my grandmother. I used two different lenses to photograph my grandmother. The first lens was a Canon 24-105mm f/4L EF lens. And the second lens was a Canon 50mm f1.4 FD (using an adapter). The picture above was taking using the Canon 50mm f/1.4 FD. Can you tell the difference between retro glass (FD lenses) and modern glass (EF lenses)?