Patent ID: 7663816

Claim:
A wide-angle lens comprising, in order from an object: a first lens group having positive refractive power; and a second lens group having positive refractive power; the second lens group including, in order from the object, a 2A lens component having positive refractive power and movable for focusing on the object, a 2B lens component having negative refractive power and movable for focusing on the object, a 2C lens component having positive refractive power and movable for focusing on the object, and a 2D lens component having positive refractive power and movable for focusing on the object, and the following conditional expression being satisfied: 1.00 <f 23/ f 24<5.00 where f 23 denotes a focal length of the 2C lens component, and f 24 denotes a focal length of the 2D lens component.