The purpose of a camera lens is to focus light onto the image sensor, allowing for the capturing of a sharp and detailed image. The quality and characteristics of a lens, such as focal length, aperture, and optical design, play a crucial role in determining the sharpness, clarity, and overall visual impact of the final photograph. A high-quality lens can improve image quality, reduce distortion and aberrations, and enhance creative possibilities by offering various focal lengths and apertures. In essence, the camera lens is essential for controlling the way light enters the camera and ultimately determines the quality of the final image.