A "normal lens" is a type of camera lens that closely mimics the perspective of the human eye. Typically, it has a focal length of around 50mm for full-frame cameras, which allows for natural-looking images without distortion. This lens is versatile and is often used for various photography styles, including portraits and street photography. Normal lenses are popular among photographers because they provide a balanced field of view and depth of field. They are also generally compact and lightweight, making them easy to carry. Many photographers prefer using a normal lens for everyday shooting due to its simplicity and effectiveness in capturing realistic scenes.