Dimensional stability refers to a material's ability to maintain its original size and shape during processing, drying, or exposure to environmental changes. In photography, this term is most often applied to photographic papers, films, and printing substrates, where shrinkage, stretching, or warping can affect image accuracy and registration.
High dimensional stability is crucial for producing sharp, consistent prints and ensuring that negatives, transparencies, or digital prints remain true to the intended composition. Photographers and printers rely on stable materials to preserve image quality, particularly in fine art, large-format, and archival work.