Microscope including a medium container containing an immersion medium in which a specimen container containing an immersion medium and a sample is immersed

A microscope comprising:

• a medium container that stores a second liquid immersion medium in which a specimen container accommodating a first liquid immersion medium together with a specimen is immersed, the second liquid immersion medium having an index of refraction identical to that of the first liquid immersion medium;
• an objective lens that is placed outside the medium container and that collects light emitted from the specimen;
• an image-capturing unit that acquires an image of the light collected by the objective lens;
• a targeting section that moves a focal position of the objective lens in a direction along a detection light axis thereof;
• and
• a movable stage that supports the specimen container in the medium container such that the specimen container can move at least in a direction along the detection light axis,
• wherein each of the specimen container and the medium container has a light-transmitting section capable of transmitting the light from the specimen, and
• wherein the objective lens is disposed so as to face the light-transmitting section of the specimen container, with the light-transmitting section of the medium container interposed therebetween.