Objectives - KERN OLM 170 User Instructions

4.2 Objectives

The nosepiece must be in its lowest position so that the objectives can be screwed
into it. You can then pass the objectives through the opening of the specimen stage
and screw them into the nosepiece, so that when you turn the nosepiece in a
clockwise direction, the objective with the next strongest magnification appears. You
must make sure that you do not touch the lenses with your bare fingers and that no
dust enters the apertures.
To the screw locations which are not filled with an objective, you must attach the
protective cap.
13 OLM-170-BA-e-2310