24
3.6 Inserting the objectives
Lift the square insert plate out of the 3-plate x/y
stage (26)
BD objectives (bright- and darkfield) are screwed
straight into the holes with M32 x 0.75 mm thread
in the objective nosepiece (26.1). They are ar-
ranged clockwise from the lowest to the highest
magnification.
Spacer rings 32/25 or 32/RMS (27) are needed for
inserting objectives with M25x/0.75 mm or RMS
screw thread.
Please make sure that the objective magnifica-
tion matches the corresponding standard magni-
fication engraved in the front of the nosepiece.
e.g. objective 5 x with standard magnification 50
(26.2).
Unoccupied nosepiece positions must be closed
with the supplied screw caps to protect the inner
optics from dust.
n.b.:
Please note that the fact that the front lenses of
the objectives point upwards means that they are
exposed to more contamination than objectives
of upright microscopes.
Therefore, check frequently to make sure they
are clean (see section 7, Care and Maintenance).
Fig. 26
Inserting the objectives
1
Objective nosepiece with M32 x 0.75 mm objective thread,
2
Standard magnification engraving
Fig. 27
Spacer rings
1
2
32/RMS
32/25
