Physicotechnical approach to systemic film moistening

This article discusses the features of storage, humidification and operation of film in Central Siberian conditions. A number of features and a certain factology are revealed that affect the organization of systemic moistening (humidification) and maintenance of film materials on analog media for long-term storage and operation of film. The main factors included in the description of this article, which affect the dynamics of maintaining the working surface of 35 mm and 16 mm film: the specifics of the composition of the film; the impact of a temporary, natural and technological nature on the "light pictures"; sophisticated technology for servicing analog film projectors, rewinding devices and film checking facilities; the specifics of the sequence of manipulations of equipment and chemical compositions for stable operation without gusts, drying and burnout of film materials. The article shows the content of work on the stages of film moistening, taking into account the specifics of their application. This specificity manifests itself most significantly when working with especially fragile film materials that are of cultural value and have an actual shelf life of at least 60 years. In the step-by-step process of moistening, after the end of each stage, the main results obtained are assessed by visual comparison of the image projections, followed by the digitization of the image and the correction of the result obtained in graphic editors. If the "light picture" is of interest and needs additional adjustments to eliminate artifacts, scratches and other elements of entropy, then neural network approaches are used to work with film material. The article presents an analysis that allows you to determine the permissible option for the implementation of film moistening in the given conditions of film testing for subsequent projection on film equipment.