Microtec HM-4 Trinocular Stereo Zoom Microscope with HM-3L4N stand

Microtec HM-4 Trinocular Stereo Zoom Microscope with HM-3L4N stand

The Microtec HM-4 stereo microscope has a built-in phototube and a zoom ratio range of 6.4:1. A selection of stands, supplementary front lenses and eyepieces are available, enabling a range of magnifications from 3.5x to 270x to be achieved.

The HM-4 also incorporates a zoom lock and click stops on the zoom adjustment at factors of 1x, 2x, 3x & 4x.

Specification is

HM-4 on the HM-3L4N incident & transmitted LED stand