Vision Scientific VS-5EZ-IFR07 Binocular Zoom Stereo Microscope,10x WF Eyepiece,0.7X—4.5X Zoom, 3.5X—90x Magnification, 0.5X & 2X Auxiliary Lens,Double Arm Boom Stand,144-LED Four-Zone Ring Light

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. It has a field of view of 2 ½” (65mm), while the parfocaled optical design ensures that images remain sharp, crisp, and focused, throughout the entire magnification range Large-and-stable double arm boom stand offers a long and flexible working distance, while the advanced ball-bearing technology allows the arm to glide with little resistance. The solid-steel, table-top, rectangular base provides a solid foundation to fit your observational needs Precise, heavy-duty rack and pinion focusing mechanism, with large knobs and adjustable tension control. Robust and versatile, it is the perfect microscope for laboratory and industrial application, and is designed to provide outstanding value without compromising performance 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