Imaging lens and imaging apparatus
Provided are an imaging lens, which is a wide-angle imaging lens and is capable of satisfactorily correcting various aberrations, and an imaging apparatus which includes this imaging lens. The imaging lens consists of, in order from an object side: a first lens L 1 that has a negative refractive power; a second lens L 2 that has a negative refractive power; a third lens L 3 that has a positive refractive power; a fourth lens L 4 that has a negative refractive power; a fifth lens L 5 that has a positive refractive power; a sixth lens L 6 that has a positive refractive power; and a seventh lens L 7 that has a negative refractive power. The following conditional expression (1) is satisfied. −2< f/f 12<−1.47 (1)
1. An imaging lens consisting of, in order from an object side:
a first lens that has a negative refractive power;
a second lens that has a negative refractive power;
a third lens that has a positive refractive power;
a fourth lens that has a negative refractive power;
a fifth lens that has a positive refractive power;
a sixth lens that has a positive refractive power; and
a seventh lens that has a negative refractive power,
wherein the following conditional expressions (1) and (2) are satisfied,
−2< f/f 12<−1.47 (1),
−0.2< f/f 1<0 (2),
where f is a focal length of a whole system,
f1 is a focal length of the first lens, and
f12 is a composite focal length of the first lens and the second lens.
2. The imaging lens according to claim 1 ,
wherein the following conditional expression (1-1) is satisfied,
−1.75< f/f 12<−1.55 (1-1).
3. The imaging lens according to claim 1 ,
wherein an object side surface of the first lens is a convex surface.
4. The imaging lens according to claim 2 ,
wherein an object side surface of the first lens is a convex surface.
5. The imaging lens according to claim 1 ,
wherein the following conditional expression (2-1) is satisfied,
−0.15< f/f 1<−0.08 (2-1).
6. The imaging lens according to claim 2 ,
wherein the following conditional expression (2-1) is satisfied,
−0.15< f/f 1<−0.08 (2-1).
7. The imaging lens according to claim 3 ,
wherein the following conditional expression (2-1) is satisfied,
−0.15< f/f 1<−0.08 (2-1).
8. The imaging lens according to claim 4 ,
wherein the following conditional expression (2-1) is satisfied,
−0.15< f/f 1<−0.08 (2-1).
9. An imaging apparatus comprising the imaging lens according to claim 1 .
10. An imaging apparatus comprising the imaging lens according to claim 2 .
11. An imaging apparatus comprising the imaging lens according to claim 3 .
12. An imaging apparatus comprising the imaging lens according to claim 4 .