Claude Glass

Claude Glass
A device used to reduce and simplify views of landscapes. By reflecting the scene through a dark, convex lens, the Claude Glass reduces colors in tones alone, and in the process, definition is lost.

Claude Glass: See section on Light; tinted convex glass used by followers of Claude Lorraine to reflect the landscape in miniature and reduce colours to tones.

Claude glass
A small convex mirror that instead of being silvered was blackened at the back. The idea was that being convex it would reduce the scene and by being blackened it would only reflect the main masses of the subject.

See also: Greek, Cartoon, Size, Composition, Cross-hatching