Sub-series consists of photographic negatives, contact sheets and prints created by staff photographers of LIDC and its predecessors. Contact sheets are pages of thumbnail images developed from the negatives. Contact sheets were organized by the creators by year, assigning a unique year-based serial number to each sheet (e.g. IMC 72062 = contact sheet 62 from 1972 created by the Instructional Media Centre). It is the contact sheets (rather than individual images) that were indexed (see note below on Finding aids).
For a few years (1987-1989), prints were developed from the negatives and filed by the same contact-sheet number system. Not all contact sheet negatives in these years were developed into prints; and the number of the prints post-1989 is very small. In the file-level contact sheet descriptions, the Physical storage section indicates the availability and container number of the contact sheet and any associated negatives and prints. In a small number of cases, contact sheets or negative may be missing, meaning they were not transferred to the Archives.
For photo subjects, see the parent series description for F-18-1, Photographic materials.
Note that the 1963 negatives pre-date the construction of the university and were later incorporated by IMC into its photo system. There are no contact sheets for the 1963 images.