An endoscopic system 5 includes a speckle reduction unit 80 which is disposed in a non-insertion unit 20, and stopped or driven in accordance with a observation mode, such that the speckle reduction unit does not reduce speckle in a speckle observation mode, and reduces the speckle in the observation modes other than the speckle observation mode. The endoscopic system 5 further includes an illumination optical system 71 which is disposed in an insertion unit 20, emits light to an observed portion, and common to the observation modes.
