Some of the terminology used in photographic ( and motion picture ) labs. Anamorphic An optical compression system used for widescreen cinematography and occasionally photography. Normally used in cinema for Cinemascope movies, these images nominally have an aspect ratio of 2.40:1 and use special optical systems that compresses the image horizontally by two times for photographic capture. The image is then expanded by two times for projection. Anti-Newton Glass Slide Mounts A special type of glass used in certain slide … Continue reading Glossary of Terms