Nikon LABOPHOT2-POL Instructions Manual page 30

N.
OPERATIONS IN DETAIL
e Removing and mounting the N D filters
Use gloves or gauze so as not to touch the filters with your bare
hands.
Lay soft cloth such as gauze on a desk beforehand. Place the ND filter
cassette on it, spread the lever and remove the filter (Fig.21). When
mounting, insert the filter obliquely in the opposite side of the lever
and spread the lever from the lower side.
Fig.21
eTransparent Cover
Place the transparent cover on the N D filter cassette to protect the
filters from dust (Fig. 22-1). When the ND filter cass.ette is removed,
place the transparent cover on the field lens (Fig. 22-2). However,
remove the cover during observation or photomicrographing with the
viewfield diaphragm stopped down.
Fig.22-1 Fig.22-2
e Other filters
• ¢33mm Lemon skin filter
When the optional achromat condenser is used, insert the ¢33m m
lemon skin filter into the receptacle between the collector lens and
the lamp bulb. (Fig. 23-1)
• ¢45mm heat absorbing filter
When the heat absorbing filter is used, mount it into the diffuser
holder and insert into the bottom of the microscope base.
(Fig.23-2)
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