Photographic materials refer to the substances used in photography to capture images. These include film, which is coated with light-sensitive chemicals, and digital sensors found in cameras. Both types of materials convert light into visual information, allowing for the creation of photographs. In addition to film and sensors, photographic materials also encompass paper used for printing images, such as glossy or matte finishes. Other items like darkroom chemicals for developing film and photo albums for storing prints are also considered part of this category, contributing to the overall process of photography.