A folded lens system , comprising: exactly five refractive lens elements (101-105) arranged along a first optical axis and a second optical axis of the folded lens system , wherein the five refractive lens elements (101-105) include, in order along the first and second optical axes from the object side of the folded lens system to an image side of the folded lens system : a first refractive lens element on the first optical axis with positive refractive power having a convex object side surface; a second refractive lens element on the second optical axis having a convex image side surface; a third refractive lens element on the second optical axis having a concave object side surface and a concave image side surface; a fourth refractive lens element on the second optical axis having a concave image side surface; and a fifth refractive lens element on the second optical axis having a convex object side surface and configured to refract light on the second optical axis to form an image at an image plane; and a light path folding element located between the first refractive lens element and the second refractive lens element and configured to redirect the light from the first optical axis on to the second optical axis; wherein the folded lens system has effective focal length f and total track length, TTL, wherein the TTL of the lens system is 16 millimeters or less, and wherein telephoto ratio |TTL/ f | of the folded lens system is within a range of 0.8 to 1.2. exactly five refractive lens elements (101-105) arranged along a first optical axis and a second optical axis of the folded lens system , wherein the five refractive lens elements (101-105) include, in order along the first and second optical axes from the object side of the folded lens system to an image side of the folded lens system : a first refractive lens element on the first optical axis with positive refractive power having a convex object side surface; a second refractive lens element on the second optical axis having a convex image side surface; a third refractive lens element on the second optical axis having a concave object side surface and a concave image side surface; a fourth refractive lens element on the second optical axis having a concave image side surface; and a fifth refractive lens element on the second optical axis having a convex object side surface and configured to refract light on the second optical axis to form an image at an image plane; and a first refractive lens element on the first optical axis with positive refractive power having a convex object side surface; a second refractive lens element on the second optical axis having a convex image side surface; a third refractive lens element on the second optical axis having a concave object side surface and a concave image side surface; a fourth refractive lens element on the second optical axis having a concave image side surface; and a fifth refractive lens element on the second optical axis having a convex object side surface and configured to refract light on the second optical axis to form an image at an image plane; and a light path folding element located between the first refractive lens element and the second refractive lens element and configured to redirect the light from the first optical axis on to the second optical axis; wherein the folded lens system has effective focal length f and total track length, TTL, wherein the TTL of the lens system is 16 millimeters or less, and wherein telephoto ratio |TTL/ f | of the folded lens system is within a range of 0.8 to 1.2. <EOS>