What Is Photometrics?
Photometry is the study of how to measure light and its properties, especially how it interacts with objects and surfaces in a scene. This can include measuring the intensity, color, and spread of light as well as the properties of objects and surfaces, such as how much light they reflect or how much light they let through. Photometrics is important in many fields, such as photography, optics, illumination engineering, and computer graphics. It is used to measure how much light comes from a source, how it moves through a medium, and how it is picked up by a detector, like the human eye or a camera.