Nikon DIAPHOT 300 - Filters.20

4. Filters
Set the appropriate filters in three filter sliders at the diascopic illumination unit. (See
page 43.)
The following filters are available.
ND2 filter
ND1 6 filter
NCB1 1 filter
GIF filter
For normal microscopy and for brightness adjustment in
photomicrography. Reduces light quantity to 1/2.
(Approx. 50% transmissivity)
For normal microscopy and for brightness adjustment in
photomicrography. Reduces light quantity to 1/16.
(Approx. 6% transmissivity)
For normal microscopy and for correcting the color
temperature in color photomicrography (day light type).
The color reproducibility is maximized when the NCB1 1 filter is
brought into the optical path and the lamp voltage is set to
PHOTO. (Coloring delicately differs with film brands.)
The NCB1 1 filter should be kept away from the optical path
when making photomicrography with tungsten type color film
or monochrome film.
Green interference filter. For microscopy with monochromatic
light and for improving the contrast in monochrome
photomicrography.
Heat insulation filter: For reducing the influences of heat rays in the illumination light
on the sample. Use the heat insulation filter for a sample quite
sensitive to heat, though the microscope has a built-in heat
insulation filter.