The type of electromagnetic wave commonly used in photography is visible light. Visible light waves, which range in wavelength roughly from 400 to 700 nanometers, are detected by both the human eye and photographic film or digital sensors to produce images. In typical photography, visible light waves reflect off objects and enter the camera lens, where they are captured to create photographs. Additionally, for photography in darkness or low-light conditions, infrared waves are used. Infrared radiation, which has longer wavelengths than visible light, can capture images by detecting heat emitted by objects. This form of photography is commonly utilized in night vision and thermal imaging cameras. In specialized medical photography, such as X-rays, X-ray electromagnetic waves are employed to take internal images of the body, using their penetrating ability. Therefore, the principal electromagnetic wave type used in standard photography is visible light, with infrared radiation used for night or heat-based imaging, and X-rays for medical imaging applications.