Objective attachment for a microscope objective and apparatus for feeding and/or removing an immersion liquid

Apparatus for feeding immersion liquid to a target region on a front region of a microscope objective and/or for removing immersion liquid from the target region, the apparatus comprising:

• at one objective attachment for the microscope objective for transporting the immersion liquid between the target region on a front side of the microscope objective and an immersion liquid transport line, the objective attachment comprising:
• at least one cannula having a spout for dispensing and/or receiving the immersion liquid and having a distal opening, to which the transport line for the immersion liquid can be connected, and
• a fastening device for holding the cannula on a housing of the microscope objective and for positioning the spout relative to the target region, wherein the fastening device comprises at least two arms, which are configured to at least partially laterally engage around the housing of the microscope objective and to hold on the housing in a force-fitting manner,
• a storage container for the immersion liquid,
• the immersion liquid transport line, which connects the storage container to the distal opening of the cannula of the objective attachment, and
• a pump for pumping the immersion liquid in the immersion liquid transport line.