This stereo microscope is a great instrument for many applications. It can be used in geology, forestry, archaeology, agriculture and biology. It is appropriate for educational purposes in hospitals and schools. It is great for the exploration of the world of surface details and fine structures of various materials like wood, metal, solder,semiconductor and stone. It is perfect for the examination of plants, rocks, stamps, coins, jewel, soldered points, microelectronic components or virtually any three dimensional objects. This scope is an ideal tool for watchmaker, jeweler, engraver, dies-maker, philatelist, coin collector, students, and etc. It comes with first-class quality and affordable price. Specification Articulated Free Binocular Head Diopter Adjustment: +/-5dp Interpupillary Distance: 55-75 mm (2.17"-2.95"), 45 degree Inclined Stage: 60 mm Black and White Reversible Stage Plate Rack and Pinion Coarse Focusing Mechanism With Slip Clutch and Tension Adjustment Net Weight: 1.8 KG or so Product Feature 45 Degree Inclined Binocular Head with Locked-In Eyepieces Stereo Erect Images over a Wide Field View Ocular-Tube with Adjustable Diopter Accurate Alignment Ensuring a Fatigue-Free Long Hour Viewing Rugged Metal e and Stand Full Optical Glass Elements Packing List One set of microscope with WF10X eyepieces One pair of eye-cups One pair of clips One dust cover One fluorescence ring light (optional)