Disclosed is a zoom lens having a first lens group having a negative
refractive power, a second lens group having a positive refractive power,
and a third lens group having a positive refractive power arranged in the
mentioned order from an object side, wherein the first lens group
includes a negative lens and a positive lens having at least one
aspherical surface arranged in the mentioned order from the object side
and satisfies a following inequality (1): 0.4