Large module rack, infinity optical system, ergonomic design, and rack and pinion traction large platform, low coaxial coarse and fine focusing gearbox positioning and tensioning, digital voltmeter (brightness). ● Trinocular tube, 45o inclination, 360o rotational positioning, IPD diopter adjustable ● Magnification: 40 × -1000 ×, ultra-wide-angle eyepiece: WF10 × / 26, full-field C interface suitable glasses ● infinity half complex Consumers flat field lens: 4 ×, 10 ×, 20 ×, 40 ×, 100 × oil ● large tin converter stage: 190 * 170mm low coaxial mobile 80 * 60mm, 0.1 cursor, a large sample clip ● K?hler illumination and Abbe condenser (NA1.25) all with iris diaphragm and filter, 12V / 50W ● Optional: reticle eyepiece micrometer, epi-fluorescence, darkfield, DIC, image processing and analysis system