Kalvotyypistä
Kalvotyypistä, often translated as "membrane type" or "film type," refers to a concept within certain fields of study, particularly in materials science and photography. In the context of photography, it historically described the type of photographic film used, where the light-sensitive emulsion was coated onto a flexible plastic base. This was a significant advancement over earlier methods that used glass plates. Different types of kalvotyypistä films were developed for various applications, offering different sensitivities, grain structures, and color reproduction capabilities.
Beyond traditional photography, the term can also be applied more broadly to describe the structure and function