The zoom lens of present invention includes, in order from the object side, a first lens group of negative refractive power and a second lens group of positive refractive power, such that each lens group moves during zooming from the maximum wide-angle state to the maximum telephoto state so that the distance between the first lens group and the second lens group decreases. The second lens group has, in order from the object side, a first lens subgroup of positive refractive power, having first and second lens units of positive refractive power, and a second lens subgroup of negative refractive power. The zoom lens satisfies at least one of the following conditions: 0.2