Exposure meters are a common tool used by photographers to measure the intensity of light in a scene. They can also be referred to as light meters or exposure testers. Other synonyms for exposure meters include luminance meters, photometers, and illuminometers. These devices can be handheld or built into cameras, and they are used to determine the best settings for capturing a well-exposed photograph. Regardless of the name, their purpose remains the same: to measure light intensity and help photographers achieve optimal exposure. With so many options available, photographers can choose the tool that best fits their needs and budget.