Product DescriptionSpecification: * Viewing Head: Seidentopf Binocular head (Inclined 45 degree)Interpupil Distance: 55mm ~ 75mm * Eyepiece: WF10X ( Viewing field 20mm ) * LWD plan objective: PL4X, PL10X, PL20X, PL40X * LWD plan phase contrast objective: 20X * Phase contrast Sliding Annular spot: 20X * Stage: Double layers mechanical stage, 242mmX172mm Center ring stage: Dia. 110mm Moving range: 75mmX50mm * Focusing: Coaxial coarse&fine focusing adjustment with rack & pinion Fine focusing scale value 0.002mm * Condenser: N. A. 0.30 Abbe condenser (W. D. 75mm) * Filter: Blue, Green, Yellow and Frosted glass * illumination: Halogen bulb 12V/30W, Brightness adjustable Standard accessory: 12V-30W spare halogen lamp ---1pc Blue & Green ground glass filter---1pc each English Manual --- 1pc ? Optional accessory: Fluorescence attachment: B, G wave band, 100W mercury lamp Digital Camera Eyepieces: 1.3 mega, 3 mega or 5 mega pixels