Photographing lens system and photographing apparatus having the same

A photographing lens system comprising:

• a first lens having a negative refractive power;
• a second lens having a positive refractive power;
• a third lens having a negative refractive power;
• a fourth lens having a negative or positive refractive power;
• a fifth lens having a negative refractive power;
• and
• a sixth lens having a negative or positive refractive power,
• wherein the first to sixth lenses are sequentially arranged in a direction from an object side to an image side, and the photographing lens system satisfies the following expression:
• 1.4<f/f2<1.8,
• wherein f denotes a focal length of the photographing lens system, and f2 denotes a focal length of the second lens.

A photographing apparatus comprising:

• a photographing lens system;
• and
• an image sensor configured to receive an image formed by the photographing lens system and convert the image into an electric image signal,
• wherein the photographing lens system comprises:
• a first lens having a negative refractive power;
• a second lens comprising an object-side surface convex toward an object side, the second lens having a positive refractive power;
• a third lens comprising an image-side surface concave toward an image side, the third lens having a negative refractive power;
• a fourth lens having a negative or positive refractive power;
• a fifth lens having a negative refractive power;
• and
• a sixth lens comprising an image-side surface concave toward the image side, the sixth lens having a negative or positive refractive power,
• wherein the first to sixth lenses are sequentially arranged in a direction from the object side to the image side.