A microscope head includes a housing having a pivot axis located generally at a center of gravity of the housing. At least one handle is connected to the housing coaxially with the pivot axis. Mounting structure is for rotatably mounting a support arm coaxially with the pivot axis. A tension control ring is attached coaxially with the pivot axis for varying a rotation force required to rotate the housing with the handle about the pivot axis. A magnification selector mechanism is connected to the housing coaxially with the pivot axis.