This is a trinocular stereo zoom microscope with a compact stand with 12" pillar. The stand's base has a small footprint to take up minimal space. The microscope incorporates all the most excellent features of a high quality laboratory instrument. Designed to meet the demands of modern microscopy applications, this microscope exceeds all expectations. It comes with SUPER widefield optics and basic table stand. This microscope offers high resolution and good depth within a broad field of view. It provides crystal clear sharp stereo images with a 4" (100mm) native working distance. Its 45 degree inclined ocular tubes ensure an easy observation and rubber eyeguards provide further comfort. Its trinocular port enables you to add photo or video capability. The stereo optics provide clear, sharp images with excellent focus-depth and a large working-distance. With 0.7X-4.5X zoom objectives, moving through the magnification range is as easy as turning a knob. 10X wide-field eyepieces provide an ample magnification range from 7X to 45X, with high-eyepoint optics to accommodate glasses or goggles. This microscope is useful for many applications. It can be used in gemology, 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 gemstone. It is perfect for the examination of insects, plants, rocks, stamps, coins, jewel, soldered points, microelectronic components, circuit boards or virtually any three dimensional objects. This scope is an ideal tool for research labs, gemologists, collectors, engravers, watchmakers, jewelers, dies-makers, philatelists, and anyone in semiconductor or electronic industry. Features : 0.7X-4.5X Continuous Zoom Objective Lenses A photo port for adding a camera 30mm Super Widefield Oculars 4" (100mm) Large Native Working Distance 45 Degree Inclined Ocular Tubes Crystal Clear Original True Color Images Erect Sharp Stereo Images over a Super Widefield of View High Resolution with Great Flatness and Contrast Accurate Alignment Ensuring Fatigue-Free Comfortable Observation Both Ocular Tubes with Adjustable Diopters Adjustable Interpupillary Distance Full Optical Glass Elements Precise Ground Glass Lenses Metal Pillar Stand Finished with Stain Resistant Enamel All Metal Mechanical Components Specifications Head Type: Trinocular, 45° incline, 360° rotatable Optical System: Greenough stereoscopic Interpupillary Adjustment: Compensation-free gemel, 54-76mm Ocular-port Diameter: 30mm Dioptric Adjustment: Both oculars, ±5dp Eyepieces: 10X Photo Port: height-adjustable 23mm tube, CX series Objective Lenses: 0.7X-4.5X zoom Objective Numerical Aperture: 0.065 @ 4.5X0.02 @ 0.7X Objective Resolution: 195 lp/mm @ 4.5X60 lp/mm @ 0.7X Native Field-of-View (10X Eyepieces): 4.4mm-28.6mm Native Working Distance: 100mm Auxiliary (Barlow) Lens: none included Stand Type: Pillar stand with large base Stand Dimensions: Base: 10" x 7-7/8" x 10.75" (254 x 200 x 275mm); Pillar 12" (300mm) height, 1.25" (32mm) diamater Focusing-block Focus Range: 50mm Stage Plate Diameter: 95mm Packing List:One trinocular stereo microscope head One photo port 10X eyepiece(s) One pair eye-guards One stand base One stand pillar One focusing block One pair stage clips One black/white stage plate One hex wrench Screws and washers