glass that diffuses light due to a rough surface produced by abrasion or etching
particulate glass made by grinding and used as an abrasive
a piece of glass or fiber-optic material etched with framelines to define the shooting aspect ratio(s) in a film camera
obscure glass formed by grinding one face, usually with sand.
Frosted glass used as a viewing mechanism in cameras without prisms. The glass is placed so that the lens projects the image against the glass for focusing and composition purposes.
1) a piece of glass roughened on one side so that an image focused on it can be seen on the other side. 2) the viewing screen in a reflex or view camera
Glass that has been shaped and polished.
Ground glass is glass whose surface has been ground to produce a flat but rough (matte) finish. A sheet of ground glass is used for the manual focusing of both still and motion picture cameras.