Meiji Techno, MT9200, Binocular Polarizing Microscope, Transmitted 30W Koehler IlluminationFeatures:Built in Bertrand lens and analyzer with compensator slotsSwing out Polarizer/Analyzer in sliding mount provides both orthoscopic and conoscopic observationsFirst order red compensating plate and 1/4 Wave-length test in a metal mount sliding mountNewly designed Strain free Abbe Condenser 1.25 N.A.Polarizer in a Swing in-out click/clamp mount, fully rotatable 360° with click stop at 0° and 90°Super Widefield compensating KHW10X, focusing eyepiece with a cross-line reticle and guide pinF.N. 20 are standard with 21 mm reticle mountSmooth operating ball bearing centerable nosepiece provides effortless objective changesClear Observation Images with ∞ Infinity Corrected Objectives ICOS Optical SystemIntermediate tube with built in Bertrand lens and analyzer and compensator slots and rotatable polarizer in a swing-out mountCeramic coated, 175mm diameter, ball bearing, circular rotating stage graduated 360°1° increments and vernier reading to 0.1° circular stageFocus tension adjustment and safety Auto-focus stage stop lever to prevent slide breakageTriangular designed frame for maximum ergonomics, greatly lessens user fatigue duringhours of extended observationBrightfield. The simplest of all the optical microscopy illumination techniques. Sample illumination is transmitted (i.e., illuminated from below and observed from above) white light and contrast in the sample is caused by absorbance of some of the transmitted light in dense areas of the sample. Brightfield microscopy is the simplest of a range of techniques used for illumination of samples in light microscopes and its simplicity makes it a popular technique. The typical appearance of a brightfield microscopy image is a dark sample on a bright background.Polarizing Light. A type of optical microscopy techniques involving polarized light. Simple techniques include illumination of the sample with polarized light. Directly transmitted light can, optionally, be blocked with a polarizer orientated at 90 degrees to the illumination. More complex microscopy techniques which take advantage of polarized light include differential interference contrast microscopy and interference reflection microscopy.The MT9200 Series Transmitted Light Polarizing Microscope that has been designed as a versatile, modular, ergonomic microscope system which are ideally suited in education, research or advanced laboratory applications such as forensic analysis, polymer, crystal identification. This series is the most suited in generating interference figures and in mineralogy in the scientific study of crystal structure and physical (including optical) properties of minerals. Our redesigned polarizing condensers enhance performance in polarized light, yielding unmatched image contrast, provide exceptionally bright, crisp images with good color rendition and superior flat fields of view. Intermediate tube with built in analyzer and compensator slot and rotatable polarizer with full wave plate.