Product Description Specification: Viewing Head: Sliding Trinocular head (Inclined 45 degree) Interpupilary Distance(IPD): 52mm ~ 74mm Eyepiece: WF10X, WF10X gridding eyepiece, WF10X with reticule. Achromatic objective: 4X, 10X, 25X(s), 40X(s), 63X(s) Stage: Rotatable circular mechanical Stage. Dia. 160mm With the graduation of 360 degree Compensator: λ λ /4; Quartz cleat (12x28mm, I?V) Condenser: Swing type Abbe NA=1.25 with Iris diaphrame and filter Illumination: Halogn lamp 6V/30W, AC85V-230V, Adjustable brightness Focusing: Coaxial Coarse and Fine Adjustment with rack & pinion Focusing interval 0.002mm Standard accessory: 6V/30W spare halogen lmp ---1pc BGX1-20(0.5A) fuse ---2pcs Blue ground glass filter---1pc Dust cover --- 1pc English manual --- 1pc Optional accessory: WF16X Camera Eyepiece