Patent ID: 8824058

Claim:
A zoom lens substantially consisting of a first lens group having a negative refractive power and a second lens group having a positive refractive power, disposed in order from the object side, wherein: zooming is performed by moving the first lens group and the second lens group; the first lens group is substantially composed of a first lens having a negative refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, and a fourth lens having a positive refractive power; the second lens group is substantially composed of four lenses; and when the focal length of the first lens group is taken as f 1 and the focal length of the second lens group is taken as f 2 , the zoom lens satisfies a conditional expression given below: 0.00<| f 1 /f 2 |<1.04 (1-4).