11
5
Using the Filters
(Fig. 6)
}Engage the optimum filter sliders for the purpose of observation in the two
filter insertion slots @ so that the filter surfaces with indication comes on
the front.
The first click position is the idle position and the second click engages
the filter in the light path.
Usable Filters Applications
U-25LBD
(Color temperature conver-
sion filter)
Turns the illumination light into daylight.
Used in general observations and color
photography.
U-25IF550
(Green filter)
Enhanced contrast in monochrome obser-
vation.
Used in monochrome photography.
U-25Y48
(Yellow filter)
Yellow filter for observation of semiconduc-
tor wafers.
U-25ND25-2 (Light intensity
adjustment filter)
Adjusts the brightness of the light source.
(Transmittance: 25%)
U-25ND6-2 (Light intensity
adjustment filter)
Adjusts the brightness of the light source.
(Transmittance: 6%)
U-25FR
(Frost filter)
Reduces irregularity in the illumination field,
but also reduces the brightness.
U-25L42
(UV cut filter)
Cut ultraviolet rays. Used to prevent the po-
larizer from being burnt by a high-intensity
light source.
Fig. 6
@
U-25ND50-2 (Light intensity
adjustment filter)
Adjusts the brightness of the light source.
(Transmittance: 50%)
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