Camera lens

1. A camera lens consistingof, 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 negative refractive power;

a fourth lens with positive refractive power; and

a fifth lens with negative refractive power; wherein the camera lens satisfies following conditions (1)˜(4):

0.75≤ f 1/ f≤ 0.85  (1);

0.52≤ f 4/ f≤ 0.62  (2);

−1.60≤( R 1+ R 2)/( R 1− R 2)≤−1.25  (3);

1.20≤( R 7+ R 8)/( R 7− R 8)≤1.50  (4);

where,

f: overall focal distance of the camera lens;

f1: focal distance of the first 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;

R7: curvature radius of the fourth lens' object side surface;

R8: curvature radius of the fourth lens' image side surface.

2. The camera lens as described in claim 1 further satisfying the following condition (5):

−20.00≤ f 3/ f≤− 4.50  (5);

where,

f: overall focal distance of the camera lens;

f3: focal distance of the third lens.

3. The camera lens as described in claim 1 further satisfying following condition (6):

1.00≤( R 3+ R 4)/( R 3− R 4)≤2.50  (6);

where,

R3: curvature radius of the second lens' object side surface;

R4: curvature radius of the second lens' image side surface.