This is a professional grade binocular stereo microscope with 20X and 40X magnification settings. It incorporates all the most excellent features of a high quality laboratory instrument. Designed to meet the demands of modern professional microscopy applications this microscope exceeds all expectations. The versatile illumination system with the microscope provides both incident (top) lighting and transmitted (bottom) lighting with intensity controls. The top lighting shining down onto objects is used for the observation of surface details and fine structures of three-dimensional objects. The transmitted illumination through the frosted stage plate is for the observation of the objects that allows light to get through them like slides diamond etc.. This microscope provides super widefield optics high resolution and good depth within a broad field of view. With super widefield eyepieces it provides crystal clear images and large working distance. The objectives are parfocal eliminating the need to refocus when changing magnification levels! The 45 degree inclined binocular and high-eye-point design ensures an easy observation especially for eyeglass wearers. The rubber eye-guards provide further comfort. This microscope is an ideal instrument for gemologists jewelry dealers and collectors. Features : A great super widefield stereo microscope with dual LED lights 20X and 40X super widefield parfocal magnification settings 45 degree inclined binocular head with super widefield eyepieces 30mm super widefield high-eyepoint 10X eyepieces 4 (100mm) large working distance Sharp stereo erect parfocal images over a super widefield of view Adjustable interpupillary distance Ocular-tube with adjustable diopter High-eyepoint design for easy observation including eyeglass wearers Accurate alignment ensuring a fatigue-free comfortable observation High resolution with great flatness and contrast Crystal clear original true color images Full optical glass elements Precise ground glass lens Metal pillar stand finished with stain resistant enamel All metal mechanical components Built-in Epi-illumination and transmitted lighting system with independently adjustable intensity CE approval electric apparatus Rubber eye-guards included Manufactured under restrict ISO 9001 quality control system Five (5) year manufacturer warranty for microscope Lowest price guaranteed or refunding the difference! Satisfaction guaranteed or your money back! Specifications : Head: 45 degree inclined 360 degree swiveling binocular Eyepiece: super widefield 10X Objectives: 2X & 4X Working Distance: 4 (100mm) Diopter Adjustment: +/-5dp Interpupillary Distance: 2-3/16 - 2-15/16 (55-75mm) Frosted Glass Plate: 3-3/4 (95mm) in diameter White/Black Plastic Plate: 3-3/4 (95mm) in diameter Incident (Top) Illumination: LED Transmitted (Bottom) Illumination: LED Power Supply: 110V/60Hz (220V/50Hz version available)