The objective of the present invention is to provide a scanning-type observation device with which the chromatic aberration of magnification of an illuminating optical system can be calibrated more simply. A scanning-type observation device 10 which causes illuminating light to be deflected by means of an actuator 25, to pass through an illuminating optical system 26 and to scan an object being illuminated 32, and which uses a light detecting unit 44 to opto-electrically convert light from the object being illuminated 32, uses an image processing unit 46 to perform image processing, and displays on a display unit 60 an image of the object being illuminated 32, wherein the scanning-type observation device 10 is provided with: a storage unit 35 which stores optical characteristic information relating to the chromatic aberration of magnification of the illuminating optical system 26 with respect to light in a plurality of prescribed colors； and a scanning path calculating unit 45 which, on the basis of the optical characteristic information, calculates a scanning path on the object being illuminated 32 for the light of each color. The image processing unit 46 generates the image of the object being illuminated 32 by calibrating, for the light of each color, on the basis of the scanning path, the position of rendering by means of an opto-electrically converted signal from the light detecting unit 44.La présente invention a pour objet de fournir un dispositif d'observation de type balayage grâce auquel l'aberration chromatique du grossissement d'un système optique d'éclairage peut être étalonnée de manière plus simple. L'invention concerne un dispositif d'observation de type balayage (10) qui amène la lumière d'éclairage à être déviée au moyen d'un actionneur (25), à passer à travers un système optique d'éclairage (26) et à balayer un objet éclairé (32), et qui met en œuvre une unité de détection de lumière (44) afin de convertir opto-électriquement la lumière depuis l'o
