A zoom lens including, in order from an object side: a first positive lens unit; a second negative lens unit; a third positive lens unit; a fourth negative lens unit; and a fifth positive lens unit, wherein during zooming from a wide angle end, intervals between the adjacent lens units are changed in such a way that the second lens unit is configured to move from the object side to the image side and the third lens unit and the fourth lens unit are configured to move, and a focal length of the third lens unit, a focal length of the fourth lens unit, a movement amount of the second lens unit during zooming from the wide angle end to the telephoto end, and a movement amount of the third lens unit during zooming from the wide angle end to the telephoto end are appropriately set.