Leica M165 FC, User Manual

Page: 121 / 160

Leica M Series User Manual Fluorescence 121
Simple Filter Holders
Simple filter holders
Three simple filter holders are included with
the Leica M165 FC and the Leica M205 FA /
M205 FCA. These filter holders have two empty
openings for the observation beam paths. The
third opening, to the illumination beam path,
is closed.
O
Use this filter holder if you want to work
briefly (no more than 15 seconds) without
fluorescence illumination.
So that the filter holder is not heated,
it must not block the mercury light for
longer than 15 seconds.
Safety Notes
O
If you want to block the mercury light for
longer than that, activate the UV shutter.
O
Use the filter if you want to change to trans-
mitted light or incident light observation
without fluorescence.
O
Always place a simple filter holder into the
empty filter changer positions in order to
protect yourself from UV radiation and
protect the system from dust.
•
If you are using fewer than four filter
holders with fluorescence filters, always
insert the included simple filter holders with
closed illumination beam path into the avail-
able positions. Otherwise, there is a risk of
danger to the eyes from direct UV radiation
from the third beam path.