Product descriptions from the supplier Overview Model SW-200i Optical System Infinity corrected Achromatic optical system Viewing Head 30�°gemel binocular viewing head with 360�° rotatable eyepiece tube, interpupillary adjustable distance: 50-75mm 30�°gemel trinocular viewing head with 360�° rotatable eyepiece tube, interpupillary adjustable distance: 50-75mm, fixed spectroscopic ratio R:T=80%: 20% Eyepiece PL10X/20T High eye-point wide-field plan eyepiece, field of view: 20mm,effective exit pupil distance: 19mm, diopter +/-5 adjustable Objective Infinity plan achromatic objective 4X,10X,20X,40X,100X Nosepiece Reversed quadruple nosepiece Stage 150x140mm mechanical stage with underhand, moving range: 76x50mm, precision: 0.1mm, with damping clips Condenser N.A.1.25 Koehler illuminator condenser(with socket for phase contrast and dark-field accessories) Focusing Integrated all-metal high-pressure die-casting (HPDC) body, precision transmission mechanism with pinion and rack. Coarse focusing scope: 30mm, with tightness adjustment and place limit set, fine adjustable precision: 0.002mm LED fluorescent reflected illumination UV2 ultraviolet long-pass type LED module, with intensity adjusting knob, and switch knob for bright field and fluorescence, central wavelength: 365mm B4 LED fluorescence module dedicated for TB, with intensity adjusting knob, and switch knob for bright field and fluorescence, central wavelength: 455mm B1 band-pass type fluorescence module, with intensity adjusting knob, and switch knob for bright field and fluorescence, central wavelength:470mm G1 band-pass type LED fluorescence module, with intensity adjusting knob, and switch knob for bright field and fluorescence, central wavelength: 560mm Other various LED modules for option, which can be custom-tailor according to the needs of clinical diagnosis. Transmitted Illuminator 100V-240V_AC50/60Hz wide range voltage, single high brightness 3W LED(predetermine filament center), intensity continuously adjustable 100V-240V_AC50/60Hz wide range voltage, Philips 6V/30W halogen bulbs(predetermined filament center), intensity continuously adjustable Video adapter 1xCTV/0.5xCTV/0.35xCTV,3.2x photo ocular ,photo tube(with PK mount or MD mount), C-mount and relay lens Other options Dark-field accessory, phase contrast accessory, polarizer/analyzer