Hecate 116B Professional Monocular Student Biological Compound Digital Microscope, 64X-2500X Magnification Fully-coated glass optics, all-metal body with monocular head Adjustable arm (0 degree to 45degree) for comfortable viewing, coarse and fine focus knobs Plain stage, N.A.0.65 condenser with disc diaphragm N.A.0.65, LED lamp illumination.Software compatible with windows7 and XP systems 4X, 10X, 40X,100X achromatic objective lenses with 16x and 25x eyepieces. Magnification settings 64X-2500X pieces High-performance Optical microscope, ideal for students learning, research and other uses of biological specimens research