It is an object of the present invention to provide an endoscope system capable of realizing desired image correction by an intuitive operation. For this purpose, the endoscope system includes an imaging unit 17 that photoelectrically converts an optical image to generate an electronic image signal, an insertion unit that has an imaging unit and has a bendable bending unit 2 b and that is inserted into the subject An operation section 3 connected to the proximal end side of the insertion section, and an operation section 3 provided on the operation section and connected to the bending section via a pulling member 11 so as to be swingable in a direction orthogonal to the central axis 3 a A lever portion 12 which is rotatably held around a central axis and which performs a bending operation of the bending portion by rocking motion, a lever portion 12 which receives the image signal generated by the imaging portion and generates a display image signal, And a video processor unit 9 for performing rotational image signal processing on the display image signal in accordance with the rotation and outputting the processing result to the image display device 16.直感的な操作により所望の画像補正を実現し得る内視鏡システムを提供することを目的とする。そのために、内視鏡システムは、光学像を光電変換して電子的な画像信号を生成する撮像部17と、撮像部を内蔵し湾曲可能な湾曲部2bを有し被検体に挿入される挿入部2と、挿入部の基端側に連結された操作部3と、操作部に設けられ牽引部材11を介して湾曲部に連結されており中心軸3aに対して直交方向に揺動可能であると共に中心軸周りに回動可能に保持され揺動により湾曲部の湾曲操作を行なうレバー部12と、撮像部により生成された画像信号が入力されて表示用画像信号を生成すると共にレバー部の回動に応じて表示用画像信号についての回転画像信号処理を行ってその処理結果を画像表示機器16へと出力するビデオプロセッサ部9とを備える。
