Easy to attach a microscope camera or digital imager. Adjustable interpupillary distance. Adjustable ocular diopter. Variable intensity illumination. Coaxial coarse and adjustment. Focusing knobs are on both sides Stage upward moving lock protects objectives and slides Stain-resistant double layer mechanical stage Rack and pinion adjustment condenser Specifications : Eyepieces: widefield, WF10X and WF25X Objectives: Achromatic DIN 4X, 10X, 40X, 100X Head: 30 degree inclined 360 degree swiveling binocular Interpupillary distance: 2-1/8" - 3-1/8" Adjustable ocular diopter Nosepiece: revolving quadruple Mechanical Stage: 3-D double layer - Size: 4-5/8" x 5" - Travel Range : 70mm x 21mm Condenser: NA1.25 Abbe condenser with iris diaphragm Illumination: LED light, transmitted, intensity adjustable, GS and CE approved Focusing: coaxial coarse & knobs on both sides Power Supply: 100-240VAC, 50/60Hz, AC/DC adapter Included Dimension: 11" x 7" x 13-3/4" Packing List : Binocular Microscope Head Microscope Body Frame with Double Layer Mechanical Stage and LED Illumination Four DIN Standard Objectives, 4X, 10X, 40X and 100X Pair of Widefield 10X Eyepieces Pair of Widefield 25X Eyepieces Color Filter Dust Cover User's Manual Download watch repair, soldering, scientific experiments, education, etc. Both adults, elderly and can easily use it. Also this USB microscope can be a gift for fathers, boyfriends.