The endoscope is provided on Tip side of the interposition section which is interposed into observation target ones passes lap by inside range of vision of direction of the interposition section, and the side-view observation section and the direct-vision observation section and the side-view observation section in order to acquire the subject image of the observation target of the path of insertion respectively is located inside range of vision of the projection component and the side-view observation section which the side-view observation section compared to project on Tip side reverse clipping easy the reverse clipping section and, has the light which incidence is done for the side-view observation section in the range which the projection component passes.内視鏡は、観察対象物内に挿入される挿入部の先端側に設けられ、挿入部の周方向及び挿入方向の観察対象の被写体像をそれぞれ取得するための側視観察部及び直視観察部と、側視観察部の視野内を通って、側視観察部よりも先端側に突出する突出部材と、側視観察部の視野内に位置し、突出部材が通る範囲において側視観察部に入射する光を遮蔽するする遮蔽部と、を備える。
