Photographic Film

Photographic film is a light-sensitive material used in traditional film photography. It is a thin, flexible sheet or strip coated with a gelatin emulsion that contains light-sensitive silver halide crystals. When exposed to light, these crystals undergo a chemical reaction that forms an invisible latent image. This latent image can be developed into a visible image through a series of chemical processes.

Photographic film comes in various formats, such as 35mm, medium format, and large format, to accommodate different types of cameras. It is typically loaded into a camera and advanced frame by frame to expose each section of the film to light. After capturing the desired images, the film is then processed in a darkroom or by a professional lab to develop the latent image into a visible photograph.

Photographic film is available in different sensitivities, known as film speeds or ISO ratings. The ISO rating indicates the film's sensitivity to light, with higher ISO numbers indicating greater sensitivity. This allows photographers to choose the appropriate film for different lighting conditions and desired effects.

In the supply class Photographic Supplies, photographic film is an essential component for photographers who prefer the traditional film photography process. It is part of the broader supply group Photographic Equipment, which includes various tools and materials used in photography.