... : Seidentopf Binocular Head, 30 degree inclined, IPD=55-75mm, Diopter adjustment Eyepiece: WF10X/20mm Achromatic objective: 4X, 10X, 40X(s), 100X ... Illumination: 6V-20W, Halogen lamp, Adjustable brightness Focusing: Coaxial Coarse & Fine Adjustment; Focusing range 30mm; Focusing interval 0.002mm Power Supply: 85V ...