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Pin hole
A small transparent or coloured spot in a processed photographic image.1
These holes can be caused by dust in the camera or printing equipment. Can also be caused by problems with processing chemicals.
References
1 British Standard Glossary of Terms used in the Motion Picture Industry BS 5196:1975
The National Film and Sound Archive of Australia acknowledges Australia’s Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the land on which we work and live and gives respect to their Elders both past and present.