Vision Scientific VS-1EZ-IFR07 Binocular Zoom Stereo Microscope, 10x WF Eyepiece, 0.7x---4.5x Zoom, 3.5x---90x Magnification, 0.5x & 2x Auxiliary Lens, Pillar Stand, 144-LED Ring Light with Control

45° inclined binocular head that rotates 360°. It features a 54-76mm interpupillary adjustment, while both ocular tubes are equipped with a (+/-6) diopter adjustable, to compensate for eye-strength difference when needed 7x---45x standard magnification range, that when used with the included 0.5x & 2x auxiliary lens, expands to a 3.5x---90x magnification range. Pillar stand offers a long and flexible working distance. The black and white reversible stage plate provides a contrasting background for the specimen, while the stage clips secure it in place Heavy and stable support arm with a lock-screw to position the 360° rotatable optical body, which also adjusts up-and-down on the vertical post stand. Precise, heavy-duty rack and pinion focusing mechanism, with large knobs and adjustable tension control 144-LED ring light with intensity control, guarantees a clear-and-crisp, cool-to-touch white light that lasts up to 60x longer than traditional tungsten bulbs