To provide a zoom lens in which focussing is possible with a small displacement and which is capable of close range focussing with superior imaging performance. The present invention provides a zoom lens capable of focussing at close range, of the type equipped with at least two lens units having negative refractive powers and arranged so as to be adjacent to each other, wherein focussing on close range objects is accomplished by causing one of the at least two lens units to move along the optical axis; and, the conditions: (.beta.a-.beta.a.sup.-1).sup.-2 0 are satisfied, where .beta.a is the lateral magnification of the close range focussing lens unit at the maximum telephoto state in an infinite focus state, and .beta.b is the lateral magnification of the close range focussing lens unit at the maximum wide-angle state in an infinite focus state.