PROBLEM TO BE SOLVED: To efficiently illuminate and image a subject such as a human body while changing the field of view in a wide angle of view, and adaptively suppress deterioration of image quality of an captured image based on a light-dark illumination balance on the subject. SOLUTION: An endoscope is inserted into a subject, arranged at a tip portion of the endoscope, and arranged at an imaging unit and a tip portion for variably imaging a subject within an angle of view of a predetermined angle. A plurality of illumination units for illuminating irradiation ranges in a plurality of different directions are provided. Each of the plurality of illumination units illuminates by changing the amount of illumination light to the corresponding irradiation range according to the viewing direction of the imaging unit. [Selection diagram] Fig. 1【課題】人体内等の被写体を広範な画角の中で視野を変えながら効率的に照明して撮像し、被写体への明暗の照明バランスに基づく撮像画像の画質劣化を適応的に抑制する。【解決手段】内視鏡は、被写体内に挿入され、内視鏡の先端部に配置され、所定角度の画角内で視野を可変に被写体を撮像する撮像部と、先端部に配置され、複数の異なる方向の照射範囲を照明する複数の照明部と、を備える。複数の照明部のそれぞれは、撮像部の視野方向に応じて、対応する照射範囲への照明光の光量を変更して照明する。【選択図】図１
