Camera lens

1. A camera lens consisting of, in an order from an object side to an image side:

a first lens with positive refractive power;

a second lens with negative refractive power;

a third lens with positive refractive power;

a fourth lens with negative refractive power; wherein the camera lens satisfies following conditions (1-A)˜(3-A), and (5-A):

1.30≤ f 1/ f≤ 1.40  (1-A);

−2.00≤ f 4/ f≤− 0.90  (2);

−2.00≤( R 1+ R 2)/( R 1− R 2)≤−1.50  (3-A);

0.65≤ f 3/ f≤ 0.75  (5-A);

where,

f: overall focal distance of the camera lens;

f1: focal distance of the first lens;

f3: focal distance of the third lens;

f4: focal distance of the fourth lens;

R1: curvature radius of the first lens' object side surface;

R2: curvature radius of the first lens' image side surface.

2. The camera lens as described in claim 1 further satisfying the following condition (4):

−4.00≤ f 2/ f≤− 2.00  (4);

where,

f: overall focal distance of the camera lens;

f2: focal distance of the second lens.

3. The camera lens as described in claim 1 further satisfying following condition (2-A):

−1.30≤ f 4/ f≤− 1.00  (2-A).

4. The camera lens as described in claim 2 further satisfying following condition (4-A):

−3.20≤ f 2/ f≤− 2.50  (4-A).