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Epifluorescent ND Filters
17.7
Pushing in an ND filter slider sets the respective ND filter into the optical path and darkens the
fluorescent image.
ND filters reduce light intensity without altering the color balance of the illumination. Higher
filter numbers correspond to lower transmission rates (i.e., darker images). If fluorescence is
too strong or if specimen colors fade too rapidly, insert ND filters into the optical path to adjust
brightness. Excessively strong fluorescence may result in poor image contrast.
ND4: Reduces light intensity to 1/4 previous levels.
ND8: Reduces light intensity to 1/8 previous levels.
ND16: Reduces light intensity to 1/16 previous levels.
You can combine these three filters to achieve various levels of brightness.
ND filter sliders
Epi-illumination attachment
Brightness
1
1/4
1/8
1/16
1/32
1/64
1/128
1/512
Individual Operations
17 Fluorescence Observation
ND4
ND8
-
-
-
-
-
-
-
-
(-: Outside optical path,
30
ND filter sliders
DIH-M
ND16
-
-
-
-
: In optical path)
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