Definition
An exposure meter is a device that measures light to determine the proper camera settings for a well-exposed photograph or video. It helps you find the ideal aperture, shutter speed, and ISO. Think of it as your camera's built-in or external 'seeing-eye'. ποΈ It ensures that your images are neither too dark (underexposed) nor too bright (overexposed). It analyzes the light in a scene. It's like having a lighting expert inside your camera.