An endoscope connectable to a processor (3) provided with a high-frequency component emphasis circuit (33) for emphasizing and correcting a high-frequency component of an imaging signal in which a high-frequency component has been attenuated, the endoscope imaging an optical image of a subject A CMOS image sensor (11) including an imaging unit that generates an analog imaging signal, and an A / D conversion unit that converts the analog imaging signal into a digital imaging signal and outputs the digital imaging signal, and a CMOS image sensor A cable (40), and a filter (24) having frequency characteristics for equalizing the frequency characteristics relating to the high frequency component emphasizing circuit.高域成分が減衰した撮像信号の高域成分を強調補正する高域成分強調回路(33)を設けたプロセッサ(3)に接続可能な内視鏡であって、被検体の光学像を撮像してアナログ撮像信号を生成する撮像部と、当該アナログ撮像信号をデジタル撮像信号に変換して出力するA/D変換部とを備えるCMOSイメージセンサ(11)と、前記デジタル撮像信号を伝送するためのケーブル(40)と、前記高域成分強調回路に係る周波数特性をイコライズする周波数特性を有するフィルタ(24)とを具備する。
