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Condenser adjustment for Köhler illumination
The image above shows condensers of various upright and inverted microscopes (above). This selection is not exhaustive and components may be located elsewhere on other models. Field diaphragm adjustment (A). The DM2500 field diaphragm is on the other side of the stand. The Nikon Ti field diaphragm is near the top of the transmitted light pillar, labelled F. Condenser focus (B). This moves the condenser up and down but doesn't affect the focus of the specimen. Centring screws (C). The Leica DM2500 and DMI6000 must be centred using hexagonal screwdrivers or Allen keys. Iris aperture adjustment (D). The iris aperture on the DMI6000 is adjusted using the AP buttons on the left of the microscope stand
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