Abstract: A microscope telescope comprises a base, (3) an arm (1) rotatably attached to the base, a microscope barrel (49) attached to the arm, an objective-holding tube (55) and a telescope tube, (65) removably attachable to the microscope barrel for alternative use. The instrument functions as a microscope by attaching the objective-holding tube to the microscope barrel and also functions as a telescope, when desired, by attaching the telescope tube to the microscope barrel, from which the objective-holding tube is removed, and by rotating the arm at a desired angle with respect to the base.