Leica DM IRB manual Inserting the photoeyepieces, Screwing objectives in and out

Inserting the photoeyepieces*

The HC PLAN observation eyepieces (slot-in diameter 30 mm) are designed for direct visual observation. For the adaption of photo-micro- graphic equipment with a fixed magnification factor, e. g. DM LD and MPS systems, and for special TV adaption systems, special eyepieces with a slot-in diameter of 27 mm and the engraving HC...PHOTO are used (note the adapter!)

See special manual for further details on adapting photo and video equipment.

Screwing objectives in and out

For the electronic version of the microscope, the DM IRB/E, the objectives are screwed in during the initial installation (see relevant chapter). For the manual version, proceed as follows:

Remove the screw covers from the objective threads.

Screw the objectives into the openings in the eyepiece so that the magnification can be changed in steps (e.g. in the order 4, 10, 20, 40).

Fig. 47

If any positions remain unoccupied, close them with a screw cover to prevent dust penetrating the microscope optics.

Please note that the front lenses of the objectives point upwards and are therefore more exposed to contamination than those on upright microscopes.

Therefore check fairly frequently that the front lens is clean.

A constantly updated optics sheet outlines the current range of objectives that can be used on the DM IRB/E. Ask your Leica agency for a copy.

Assembling the stages, the plane stage and object guide

Plane stage

The plane stage is fixed to the microscope with 3 screws (48.4). The object guide can be mounted to either the right or the left of the plane stage (48.2).

Fig. 48 Plane stage

1 Insert ring, 20/40 mm diameter, 2 Drill holes for mountable object guide, 3 Drill holes for specimen clips, 4 Drill holes for securing the stage

2

3 1 3

		4
4	2

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