Provided is a scanning observation apparatus capable of more easily calibrating chromatic aberration of magnification of an illumination optical system. The illumination light is deflected by the actuator 25 and the irradiated object 32 is scanned through the illumination optical system 26, and the light from the irradiated object 32 is photoelectrically converted by the light detection unit 44 and processed by the image processing unit 46 to be displayed. In the scanning observation apparatus 10 that displays an image of the irradiated object 32 on 60, a storage unit 35 that stores optical characteristic information regarding the chromatic aberration of magnification of the illumination optical system 26 for a plurality of predetermined color lights, and color light based on the optical characteristic information A scanning locus calculation unit 45 for calculating a scanning locus on the irradiated object 32 for each irradiation object, and the image processing unit 46 draws the drawing position by the photoelectric conversion signal from the light detection unit 44 for each color light based on the scanning locus. Is calibrated to generate an image of the irradiation object 32.照明光学系の倍率色収差をより簡便に較正することが可能な走査型観察装置を提供する。 アクチュエータ２５により照明光を偏向して照明光学系２６を経て被照射物３２を走査し、被照射物３２からの光を光検出部４４で光電変換して画像処理部４６で処理して表示部６０に被照射物３２の画像を表示する走査型観察装置１０において、複数の所定の色光に対する照明光学系２６の倍率色収差に関する光学特性情報を格納する記憶部３５と、光学特性情報に基づいて色光毎の被照射物３２上での走査軌跡を演算する走査軌跡演算部４５と、を備え、画像処理部４６は、走査軌跡に基づいて色光毎に光検出部４４からの光電変換信号による描画位置を較正して被照射物３２の画像を生成する。
