PURPOSE: To provide a photographing lens whose entire length is made short, whose F-number is made small and which secures sufficient brightness.

CONSTITUTION: A diaphragm 10, a 1st concave lens 11 whose concave surface is faced to an object side, a 2nd convex lens 12, a 3rd concave lens 13 whose convex surface is faced to the object side and a 4th convex lens 14 are arranged in order from the object side; and the 2nd, the 3rd and the 4th lenses 12 to 14 are formed of material having high refractive index and the 3rd and the 4th lenses 13 and 14 are bonded. Since the 1st to the 4th lenses 11 to 14 are arranged at the rear of the diaphragm 10, the entire length of the lens is made shorter than a focal length, and since the 3rd and the 4th lenses 13 and 14 are bonded, aberration is compensated with advantage, the F-number is made small, and the sufficient brightness is secured, then a large aperture ratio is realized.