Achromatic/ Plan Achromatic/ Infinity Plan Achromatic ObjectiveBinocular/ Trinocular Head, Inclined at 30°Eyepiece: WF10×18mmObjective: 5X 0.12 WD23.6mm; 10X 0.25 WD17.7MM; 20X 0.40 WD10.4MM; 50X 0.55 WD7mmKohler Illumination, Epi-illuminator