Question

4. Which of the following parts should Joseph adjust to change the objective lens from

scanner to HPO?
a. Inclination Joint
c. Stage
b. Revolving Nosepiece
d. Body Tube​

Answer 1

D. Body Tube

A hallow tube attached to the arm, that connects the eyepiece to the(OBJECTIVES) there are types of objectives and those are "Scanner , LPO , HPO , and OIO" and Body tube also assures continuos alignment of the optics :) I hope this helped you