This article discusses the chemical and biological effects of light and photography. Light is a form of energy known as
electromagnetic radiation, and its expression at wavelengths and the unit of measurement, nanometer, is considered a separate
characteristic. It ranges from very short wavelength to long wavelength radiation. Visible (normal / sunlight) light is the band of
radiation that our eyes can see. Under the influence of light, the following processes can occur: the attachment of atoms to
molecules, dissociation, photochemical reaction, synthesis reaction. This article discusses light and its chemical effects, as well
as photography.
