Abstract: An improved portable field inspection microscope intended primarily for, but not in all cases limited to, use in inspecting butt ends of fiber optics cables, or other similar cylindrical objects, and including a receiver, holder and positioner adapted to receive such a butt end of a fiber optics cable, or the like, and to position same coincident with a selected butt-end-surface-viewing plane, which may also be considered as a microscope focusing plane, which lies appropriately forwardly of a microscope optical-path-defining longitudinal cylindrical inner chamber in a small portable housing and which not only carries said receiver, holder and positioner at a forward location, but intermediately carries microscope objective lens mounting apparatus and a microscope objective lens assembly for focusing on said focusing plane, and with the housing also being further rearwardly provided with microscope eyepiece lens mounting apparatus and an eyepiece lens assembly longitudinally adjustably carried for focusing on,