Zoom lens and imaging apparatus

A zoom lens consisting of, in order from an object side:

• 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;
• a fourth lens group having a positive refractive power;
• and
• a fifth lens group having a positive refractive power,
• wherein, during zooming, the first lens group and the fifth lens group are fixed with respect to an image plane, and the second lens group, the third lens group, and the fourth lens group move with mutual intervals therebetween being changed,
• wherein, during zooming from a wide angle end to a telephoto end, the fourth lens group moves from an image side to the object side, and the second lens group and a composite group consisting of the third lens group and the fourth lens group pass through points where respective lateral magnifications are −1 at the same time,
• wherein the fifth lens group consists of, in order from the object side, a fifth A lens group having a negative refractive power and moving in a direction having a component perpendicular to an optical axis during anti-shake operation to perform image shake correction, and a fifth B lens group having a positive refractive power and being fixed during the anti-shake operation, and
• wherein the lateral magnification of the fifth A lens group is negative.