A photographing lens includes first, second and third lens elements arranged in a sequence from an object side. The first lens element is a positive meniscus with a positive power, and has a convex surface convex to the object side. One of surfaces of the first lens element is aspherical. The second lens element is a positive meniscus with a positive power. The third lens element is a negative meniscus with a negative power, and has a concave surface oriented to the object side. The first, second and third lens elements satisfy conditions of: 0.49<|F2/F3|<1.0, and 0.5