This binocular arm-stand stereo microscope offers two magnification powers 20X & 40X. It comes with a versatile illumination system that provides both incident (top) lighting and transmitted (bottom) illumination. You can choose between incident illumination shining down onto the object or transmitted illumination through the frosted stage plate. The first is used for the observation of three-dimensional objects and the second for the observation of slides. This microscope offers high resolution and good depth within a broad field of view. It gives sharp clear stereo images. Its 45 degree inclined binocular head ensures an easy observation and rubber eye-guards provide further comfort. This microscopy system 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 insects 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. Features : An affordable great stereo microscope 45 degree inclined binocular head with locked-in eyepieces Two magnification levels: 20X & 40X Sharp stereo erect images over a wide field view High quality original true color Unbeatable lowest price Ocular-tube with adjustable diopter Accurate alignment ensuring a fatigue-free long hour viewing Rugged metal frame and arm-stand Full optical glass elements Precise ground glass lens All metal mechanical parts Adjustable interpupillary distance Built-in both incident and transmitted illumination Systems Upper/lower halogen lights GS & CE approval electric apparatus Extra bulb white/black base plate and rubber eye-guards included Manufactured under ISO 9001 Quality Control Standard Excellent Five (5) Year Manufacturer Warranty Unbeatable Lowest Price Guaranteed or the Difference Back! Satisfaction Guaranteed or Your Money Back! Specifications : Head: 45 degree inclined binocular Widefield Eyepiece: WF10X Objective: 2X & 4X Diopter Adjustment: +/-5dp Interpupillary Distance: 2-3/16 - 2-15/16 (55-75mm) Working Distance: 2-1/8 (53mm) Frosted Glass Objective Plate: 3-3/4 (96mm) in diameter White/Black Plastic Objective Plate: 3-3/4 (96mm) in diameter Incident Illumination: 12V/10W Transmitted Illumination: 12V/10W Power Supply: 110V (220V version available) Accessories: a pair of eye-caps a pair of clips and a dust cover Shipping Weight: 8 lbs Packing List : One Binocular Microscope with Forward Arm Stand Top & Bottom Lights and 2X & 4X Objectives One Pair of 10X Widefield Eyepieces One 3-3/4 (96mm) Frosted Glass Plate One 3-3/4 (96mm) Plastic Plate One Wrench for Focusing Tension Adjustment One Pair of Eye-guards One Pair of Clips One Spare Bulb One Dust Cover User s Manual Shipping Weight: 8 lbs