Olympus BX3-25ND25 Manual de instrucciones - Página 19

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Fig. 9

Fig. 10

Mounting the ND Filters

} Specimen color fading can be delayed by reducing the excitation light

intensity with ND filters. Use the ND filters as far as they do not hinder

observations.

} The figure in the model number of each ND filter represents its transmit-

tance.

(Examples) · ND1.5: Transmittance 1.5%

· ND6: Transmittance 6%

· ND25: Transmittance 25%

Note that the metallic filter frame will be very hot if you leave the filter

inserted for a long time while the mercury burner is on.

Do not leave the filter insertion positions in other positions than the

click positions for a long period of time.

To switch the ND filter position, hold the ND filter slider by the top and

bottom edges and slide it.

Operation with BX3-URA (Fig. 9)

1. Insert the filters required for the observation (BX3-25ND6, BX3-25ND25) 3

into the two ND filter insertion slots @ 2 Up to two filters can be inserted

from both sides. Each filter should be inserted so that the filter name

inscription faces toward the observer.

If a filter is inserted back to front (with the filter name inscription

CAUTION

facing the opposite direction to the observer), the filter may be

damaged.

The first click position of the filter engages the empty position in the light

path, and inserting the filter till the second click position engages the

filter.

Operation with BX3-RFAS (Fig. 10)

} Use the ND filter slider @ provided with the BX3-RFAS.

1. If the stopper 2 is attached to the ND filter slider @, loosen and remove

the stopper 2 using the Allen screwdriver.

2. Insert the ND filter slider into the ND filter slider insertion slot 3 on the

right side so that the filter name inscriptions face the front.

3. Attach the stopper 2 again so that the ND filter slider does not slip out

accidentally.

4. The filter positions that can be engaged in the light path include three

for the ND1.5/ND6/ND filters and one empty (\) position.

Each filter can be engaged at the click position.

The filter being engaged in the light path can be checked at the top

positions (left and right) | of the insertion slot.

Please note that if you use filter slider when it does not click properly into

place, the illumination unevenness may occur or the slider frame may be

heated.