Artist David Hockney discusses his theory that artists were secretly using optical devices such as mirrors and lenses in creating their work as early as the 15th century.
Media
Backdrops and posters from the title's official gallery
Artist David Hockney discusses his theory that artists were secretly using optical devices such as mirrors and lenses in creating their work as early as the 15th century.
Backdrops and posters from the title's official gallery
