Endoscope objective lens system

An endoscope objective lens system comprising a negative front lens group, a diaphragm, and a positive rear lens group, in this order from an object;

• wherein said negative front lens group comprises one lens element, or a plurality of non-cemented lens elements;
• wherein the most object-side lens element of said negative front lens group comprises a negative lens element;
• wherein said positive rear lens group comprises a plurality of non-cemented lens elements;
• wherein at least one negative lens element is provided in said positive rear lens group;
• wherein said endoscope objective lens system satisfies the following conditions:
• −1.45<f1/f<−0.6
• 0.7<|fF/fR|<1.35
• −2.3<f(−)/f<−1.5
• wherein
• f1 designates the focal length of the most object-side negative lens element of said negative front lens group;
• f designates the focal length of the entire endoscope objective lens system;
• fF designates the focal length of said negative front lens group (fF<0);
• fR designates the focal length of said positive rear lens group (fR>0);
• and
• f(−) designates the focal length of said negative lens element of said positive rear lens group.