This is an advanced reflected-brightfield, darkfield and polarizing metallurgical microscopy system. The microscope comes with a quintuple nosepiece, four infinity Plan objectives and a powerful 100W reflected Koehler illumination system, providing brightfield, darkfield and polarizing features. This microscopy system is perfect for metallurgical labs and foundries for silicon wafer inspection, integrated circuit examination, quality control and R&D applications. It is an ideal instrument for metallurgical, mineral and crystal identification. OpticsThe ME600T uses M25 BD objective lenses which provide a larger field-of-view, and can be used with reflected-light darkfield illumination. The quintuple turret allows you to quickly switch between the five lenses. With the included 10X eyepieces, the overall magnification range spans 50X to 1000X. Features : A brightfield, darkfield and polarizing metallurgical microscopy system with 100W Kohler illumination Color corrected infinity optical system (CCIS) 25 degree inclined 360 degree rotatable gemel trinocular head with vertical image 100% prismatic rate Quintuple nosepiece with brightfield (BF) and darkfield (DF) Five infinity PLAN Achromatic objectives included Eyepiece with 0.1mm micrometer and cross hair included 100 Watt halogen reflected EPI-illumination system Digital controlled intensity adjustment and light reset 6" extremely large mechanical stage with clutch for swift moving control Low position stage traveling controls Full optical glass elements Precise ground glass lenses All metal mechanical parts Coaxial coarse and fine focusing system Dual focusing control knobs Focusing tension control mechanism Adjustable interpupillary distance Adjustable diopters on both eye tubes Specifications Optical System: Infinite-conjugate Head: Trinocular, 25° incline, 360° rotatable Photo Port: height-adjustable CX series, C-mount Interpupillary Adjustment: Siedentopf compensation-free Ocular Diameter: 30mm Ocular Diopters: left ±5dp Eyepieces: 10X Objective Lenses: Infinity-corrected Objective Parfocal Distance: 45mm Objective Mounting Thread: M25 BD 25mm Objective Turret: Reverse quintuple, ball-bearing movement Objective Lenses: 5X, 10X, 20X, 50X, 100X BD plan-achromat Focusing System: Coaxial coarse and fine focus, tension control Focus Range: 33mm Division of Fine Focus: 0.001mm Stage Design: 6" glass-top gliding stage with clutch control X-Y Translation Range: 158mm x 158mm Transmitted Illumination: 100W halogen digitally controlled brightness Power: 110-240VAC 50/60Hz wide-band Packing List:One microscope body One trinocular head One photo-port One episcopic illumination assembly One pair 10X eyepieces Five BD objective lenses: 5X, 10X, 20X, 50X, 100X Assorted filters One AC power cable