A zoom lens comprising: a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group having a positive refractive power, which are disposed in order from an object side to an image side; and an aperture stop disposed between the second and third lens groups, wherein the second lens group comprises, in order from an object side to an image side, a first negative lens, a second negative lens and a positive lens, wherein when changing the magnification of the zoom lens from a short focal end to a long focal end, an interval between the first and second lens groups increases, an interval between the second and third lens groups decreases, and an interval between the third and fourth lens groups increases; the first and third lens groups are moved so as to be positioned at object side positions at the long focal end relative to positions at the short focal end; and the third lens group has two positive lenses including a first positive lens (L_p1, L31) and a second positive lens (L_p2, L32) which are disposed in order from an object side; and wherein the following conditions are satisfied: 60 < p 1 _v d < 80 60 < p 2 _v d < 80 wherein p1_ν d is an Abbe number of the first positive lens (L_p1, L31) and p2_v d is an Abbe number of the second positive lens (L_p2, L32); characterized in that the following further conditions are satisfied: 1.55 < p 1 _n d < 1.7 1.55 < p 2 _n d < 1.7 0.008 < p 1 _P g, F − − 0.001802 × p 1 _v d + 0.6483 < 0.050 0.008 < p 2 _P g, F − − 0.001802 × p 2 _v d + 0.6483 < 0.050, where p1_n d is a refractive index of the first positive lens (L_p1, L31), p2_n d is a refractive index of the second positive lens (L_p2, L32) p1_ν d is an Abbe number of the first positive lens (L_p1, L31), p2_ν d is an Abbe number of the second positive lens (L_p2, L32), p1_P g,F is a partial dispersion ratio of the first positive lens (L_p1, L31), and p2_P g,F is a partial dispersion ratio of the second positive lens (L_p2, L32) and a partial dispersion ratio P g,F is defined by the following equation: P g, F = n g − n F / n F − n C where n g, n F, and n C are refractive indices of a positive lens for g, F, and C lines, respectively. a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group having a positive refractive power, which are disposed in order from an object side to an image side; and an aperture stop disposed between the second and third lens groups, wherein the second lens group comprises, in order from an object side to an image side, a first negative lens, a second negative lens and a positive lens, wherein when changing the magnification of the zoom lens from a short focal end to a long focal end, an interval between the first and second lens groups increases, an interval between the second and third lens groups decreases, and an interval between the third and fourth lens groups increases; the first and third lens groups are moved so as to be positioned at object side positions at the long focal end relative to positions at the short focal end; and the third lens group has two positive lenses including a first positive lens (L_p1, L31) and a second positive lens (L_p2, L32) which are disposed in order from an object side; and wherein the following conditions are satisfied: 60 < p 1 _v d < 80 60 < p 2 _v d < 80 wherein p1_ν d is an Abbe number of the first positive lens (L_p1, L31) and p2_v d is an Abbe number of the second positive lens (L_p2, L32); characterized in that the following further conditions are satisfied: 1.55 < p 1 _n d < 1.7 1.55 < p 2 _n d < 1.7 0.008 < p 1 _P g, F − − 0.001802 × p 1 _v d + 0.6483 < 0.050 0.008 < p 2 _P g, F − − 0.001802 × p 2 _v d + 0.6483 < 0.050, where p1_n d is a refractive index of the first positive lens (L_p1, L31), p2_n d is a refractive index of the second positive lens (L_p2, L32) p1_ν d is an Abbe number of the first positive lens (L_p1, L31), p2_ν d is an Abbe number of the second positive lens (L_p2, L32), p1_P g,F is a partial dispersion ratio of the first positive lens (L_p1, L31), and p2_P g,F is a partial dispersion ratio of the second positive lens (L_p2, L32) and a partial dispersion ratio P g,F is defined by the following equation: P g, F = n g − n F / n F − n C where n g, n F, and n C are refractive indices of a positive lens for g, F, and C lines, respectively.