Metallurgy Microscope - Industrial Quality Control & Metal Testing Lab Ferrous, Non Ferrous - Steel, Cast Iron, Aluminum & Copper Alloys Rugged Industrial Construction Trinocular Head Adjustable interpupillary distance with diopter adjustment Glass Optical System suited Reflected light Applications Brightfield Incident Illumination, Anti Reflection & Hard Coating on all Optical Components 6 Level Of Magnification 40x, 60x 100x, 150x, 400x, 800x Variable Illumination with aperture Diaphragm Coarse & Ultra Fine Focusing Knobs CE, UL & ISO confirmition Variable halogen illumination with provision for centering Best Price to performance Ratio