A camera lens is a crucial part of a camera that helps capture images. It focuses light onto the camera's sensor or film, allowing you to take clear pictures. Different types of lenses, like wide-angle or telephoto, can change how much of a scene you can see or how close you can get to your subject. The quality of a lens can greatly affect the final image. High-quality lenses can produce sharper and more vibrant photos, while lower-quality ones may result in blurry or dull images. Understanding how to choose the right lens for your needs can enhance your photography experience.