Zoom lens, optical apparatus, and a manufacturing method of the zoom lens

A manufacturing method of a zoom lens consisting of, in order from an object, a first lens group having a negative refractive power, a second lens group having a positive refractive power, a third lens group having a negative refractive power, and a fourth lens group having a positive refractive power,

• the method comprising:
• arranging the lens groups in a lens-barrel such that the first lens group, the second lens group, and the third lens group are moved on an optical axis to perform zooming by changing respective distances between the first and second lens groups, the second and third lens groups, and the third and fourth lens groups,
• configuring the first lens group to consist of, in order from the object, a negative lens, a negative lens and a positive lens,
• configuring the second lens group to consist of five lenses, and
• configuring the third lens group to consist of a bi-concave negative lens.