What is the role of a camera lens?

The role of a camera lens is to focus light rays to form an image. When light enters the camera through the lens, it is bent and directed in such a way that it converges to create a sharp image on the camera sensor or film. The lens is made up of one or more glass elements that manipulate the pathway of light, allowing for various focal lengths, which determine how zoomed in or out the image appears.

In addition to focusing light, the lens also plays a critical role in depth of field, perspective, and overall image quality. The design and characteristics of the lens can significantly affect the sharpness, distortion, and color representation of the photograph, making it an essential component in photography and videography. Understanding how lenses work is fundamental for anyone looking to enhance their skills in capturing images effectively.