Microscope system and motorized nosepiece driving method

A microscope system that observes a sample with a microscope, the microscope system comprising:

• a motorized nosepiece configured to hold a plurality of objective lenses and be able to switch the objective lenses arranged on an observation optical path by rotation;
• and
• a processor configured to control driving of the motorized nosepiece in accordance with an input drive instruction,
• wherein the processor has, as a switchable mode for controlling driving of the motorized nosepiece,
• a first mode for switching the objective lenses arranged on the observation optical path by rotating the motorized nosepiece with a first rotation amount corresponding to the drive instruction, in accordance with the drive instruction, and
• a second mode for rotating the motorized nosepiece with a second rotation amount in accordance with the drive instruction, and
• the second rotation amount is smaller than the first rotation amount.