The objective of the present invention is to provide an endoscope that obtains favorable endoscopic images and causes the balance of the amount of illumination light in the anterior direction and the lateral direction to be distributed appropriately. To said end, the present invention has a configuration provided with: a first objective lens (21) that causes the formation of an image of an anterior subject of observation a cylindrical second objective lens (22) that causes the formation of an image of a lateral subject of observation a first distance detection unit (9a, 41) that measures the distance between the first objective lens and the anterior subject of observation thereof a second distance detection unit (9a, 42) that measures the distance between the second objective lens and the lateral subject of observation thereof a light guide (32a) that leads illumination light emitted from a light source (10) to the tip side of an insertion section a light distribution member (32) that distributes the light from the light guide to the anterior direction of the first objective lens and to the lateral direction of the second objective lens a variable-light-quantity means (45) that alters the light quantity proportion between the light emitted in the anterior direction of the first objective lens and the light emitted in the lateral direction of the second objective lens and a control unit (9b) that controls the variable-light-quantity means on the basis of a first distance signal and a second distance signal.La présente invention vise à proposer un endoscope, qui obtient des images endoscopiques favorables et amène léquilibre de la quantité de lumière déclairage dans la direction antérieure et la direction latérale à être distribuée de façon appropriée. ÀA cet effet, la présente invention a une configuration comprenant : un premier objectif (21) qui entraîne la formation dune image dun sujet dobservation antérieur un second objectif cylindrique (22) qui entraîne la fo
