BINOCULAR, 4 OBJECTIVES I-4 Binocular Laboratory Microscope with INFINITY Plan Objectives (4X, 10X, 40XR, 100XR). Infinity microscope with advanced LED illumination. Use the rotating head to adjust the height for taller users. Infinity Plan and Semi-Plan optics with a 30-year anti-fungal coating match quality with value within any clinic’s budget. One year warranty on electronic components; lifetime warranty on materials and workmanship. Ergonomic drop down stage controls Finger lite fine focus adjustment Special swivel head lock Adjustable Height Binocular Head for taller or shorter users Infinity Corrected Optics Included accessories: Blue and green filters Dust cover Immersion oil Manual Warranty card http://youtu.be/ko5qysuD42g