Imaging lens and imaging apparatus

An imaging lens consisting of, in order from an object side:

• a first lens group;
• a diaphragm;
• and
• a second lens group that has a positive refractive power,
• wherein the first lens group consists of, in order from the object side, a first A lens group that consists of a first-1 negative meniscus lens concave toward an image side and a first-2 negative meniscus lens concave toward the image side, and a first B lens group that consists of a first-3 positive lens or a first-3A negative lens and a first-3B positive lens,
• wherein the second lens group consists of, in order from the object side, a second-1 biconvex lens, a second-2 biconcave lens, a second-3 biconvex lens, and a second-4 negative meniscus lens that is concave toward the object side, or in order from the object side, a second-1 biconvex lens, a second-2 biconcave lens, a second-3A biconvex lens, a second-3B biconvex lens, and a second-4 negative meniscus lens that is concave toward the object side, and
• wherein the following conditional expressions (1) and (2) are satisfied,
• −1<(L22f+L22r)/(L22f−L22r)<0.5 (1), and
• −0.6<f1A/f1B<−0.25 (2),
• where L22f is a radius of curvature of an object side surface of the second-2 biconcave lens,
• L22r is a radius of curvature of an image side surface of the second-2 biconcave lens,
• f1A is a focal length of the first A lens group, and
• f1B is a focal length of the first B lens group.