Zoom lens and image capture apparatus having the same

A zoom lens comprising:

• a first lens unit having a negative refractive power;
• a second lens unit having a positive refractive power;
• and
• a rear group including two or more lens units, wherein
• the first lens unit, the second lens unit, and the rear group are disposed in order from an object side toward an image side,
• wherein a total number of lens units arranged in the zoom lens is five or more,
• in zooming, the first lens unit is arranged to move, and each interval between adjacent lens units changes,
• the rear group includes all lens units arranged on the image side of the second lens unit in the zoom lens,
• a refractive index of a negative lens A disposed closest to an object, among negative lenses included in the first lens unit, is greater than or equal to 1.89, and
• the following inequalities are satisfied:
• 2.0<Ra/Da<100;
• 10<Rb/Db<100;
• −3.5<fa/fw<−1.5;
• 0.15<GL/TL<0.30;
• and
• −20<100×(y−y0)/y0<−8
• where a radius of curvature of an image-side lens surface of the negative lens A is Ra, a radius of curvature of an object-side lens surface of a lens B disposed adjacent to the image side of the negative lens A is Rb, an air gap between the negative lens A and the lens B is Da, an air gap between the lens B and a lens disposed adjacent to the image side of the lens B is Db, a focal length of the negative lens A is fa, a focal length of the zoom lens at a wide angle end is fw, a distance from a lens surface closest to the object, among lens surfaces of the first lens unit, to a lens surface closest to an image plane, among the lens surfaces of the first lens unit, is GL, a distance from a lens surface closest to the object, among lens surfaces of the zoom lens, to the image plane at the wide angle end is TL, a maximum real image height at the wide angle end is y, and an ideal image height with a maximum view angle of the zoom lens at the wide angle end is y0.