This is a first-class 7X-45X trinocular stereo zoom microscope with LED cool illumination system. Designed to meet the demands of the modern microscopy applications that are temperature-sensitive, like dissecting live tissues or observing live creatures, this scope exceeds all expectations. It incorporates all the most excellent features of a high quality laboratory instrument. This microscope comes with SUPER widefield optics and versatile LED illumination system that provides both incident (top) cool lighting and transmitted (bottom) cool 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 inspection of the objects that allow light to get through them. This microscope offers high resolution and good depth within a broad field of view. It provides crystal clear sharp stereo images, wide zoom magnification range, and large working distance. Its 45 degree inclined 360 degree swiveling trinocular head ensures an easy observation and rubber eyeguards provide further comfort. This microscope is especially useful for the applications that need cool illumination. It can be used in biology, forestry, archaeology, and agriculture. It is appropriate for educational purposes in hospitals and schools. It is perfect for the examination of insects, plants, or virtually any three dimensional temperature-sensitive objects. Features: A great microscopy system for temperature-sensitive applications7X-45X large zoom range continuous magnificationLED incident (top) cool lighting and transmitted (bottom) cool illumination6.5:1 large zoom range4" (100mm) Large working distance45 degree inclined trinocular head with SUPER widefield eyepiecesHigh-eyepoint design for easy observation including eyeglass wearers23 mm upright tube for photo or video accessories30mm SUPER widefield eyepieces includedHigh resolution with great flatness and contrastSharp stereo erect images over a SUPER widefield of viewCrystal clear original true color imagesBoth ocular-tubes with adjustable diopterMetal pillar stand finished with stain resistant enamelAccurate alignment ensuring a fatigue-free long time viewFull optical glass elementsPrecise ground glass lensesAll metal mechanical componentsAdjustable interpupillary distanceRubber eyeguards includedCE approval electric apparatusManufactured under restrict ISO 9001 quality control standardsFive (5) year manufacturer warrantySpecifications: Head: 45 degree inclined 360 degree swiveling trinocularEyepiece: 30mm super wide field high-eyepoint WF10X/20Objective: 0.7X-4.5XZoom Range: 6.5:1Maximum Field of View: 1-1/4" (31.75mm)Minimum Field of View: 3/16" (4.75mm)Diopter Adjustment: +/-5dpInterpupillary Distance: 2-3/16" - 2-15/16"(55mm-75mm)Working Distance: 4" (100mm)Frosted Glass Plate: 3-3/4" (95mm) in diameterWhite/Black Plastic Plate: 3-3/4" (95mm) in diameterIncident (Top) Illumination: LED ring lightTransmitted (Bottom) Illumination: 16-LED bottom lightPower Supply: 110V/60Hz (220V/50Hz version available)Accessories: dust cover, eye-guards and clips.