A prime lens, also known as a fixed focal length lens, is a type of lens that has a single, fixed focal length. Unlike zoom lenses, which offer a range of focal lengths, prime lenses do not zoom in or out. This fixed focal length design allows prime lenses to be optically simpler, leading to superior image quality compared to zoom lenses. They are known for their wide apertures, which allow for better performance in low-light conditions and the ability to achieve a shallower depth of field. Photographers often prefer prime lenses for their sharpness, clarity, and ability to create beautifully blurred backgrounds, also known as bokeh. While using a prime lens requires physically moving closer or further away from the subject to achieve the desired composition, many photographers appreciate the creative challenges and discipline that come with using prime lenses. Overall, prime lenses are valued for their image quality, wide apertures, and compact designs, making them popular choices for portrait, street, and low-light photography.