Zeiss Stemi 508 Operating Manual

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Zeiss Stemi 508 Operating Manual Manual pdf 28 page image

ZEISS OPERATION Stereo microscopeSetting reflected-light illumination Stemi 50826 435064-7044-010 06/2015English4.2 Setting reflected-light illumination• By pressing the knob (Fig. 14/5), the reflected-light illumination is switched ON or OFF (spotilluminator or double spot illuminator).• By turning the knob, the illumination intensityof the switched-ON reflected light illuminationcan be adjusted.4.2.1 Spot illuminator• Push spot illuminator in the guide to therequired height (Fig. 16/2).In the lower positions, an oblique lighteffect is created to produce castshadows for enhancing surfacestructures.• Set the angle (Fig. 16/1) via the pivot of thespot illuminator so that the object is optimallyilluminated.• Set size and brightness of the spot by axiallyshifting the focusing unit (Fig. 16/3)(illumination zoom).4.2.2 Double spot illuminator• Move the microscope body to its uppermostposition via the focusing knob (Fig. 17/1).• Push double spot illuminator (Fig. 17/2) to therequired level within the guide.• Bend the two goose necks (Fig. 17/3) to adjustthe spots so that the specimen is optimallyilluminated.Here again, an oblique light effect canbe produced in the lower positions withthe goose neck set horizontally.Fig. 16 Setting the spot illuminatorFig. 17 Double spot illuminator