Olympus CKX41 Gebruiksaanwijzing - Pagina 20

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Fig. 9

Switching the Filter Slider

}Hold the knob of the filter slider 1 on the illuminator and

move the knob to the left and right to select one of the three

positions, which are arranged in order of the filter pocket,

open position and shutter from the right to the left.

To adjust the observation brightness, insert an optimum ND

filter (32ND6, 32ND12, 32ND25 or 32ND50) into the filter

pocket and set the filter slider to engage it in the light path.

When not performing observation, set the filter to the shutter

position to prevent the specimen fluorescence color fading

by cutting the excitation light.

ND filter

}The ND filter can reduce the excitation light intensity to

delay color fading of the specimen. Use the ND filter as far

as this does not hinder operation.

1. Slide the filter slider 1 on the illuminator in the direction of

the arrow.

2. Drop in the ND filter 3 into the filter pocket 2.

# To prevent the ND filter from being cracked, insert it so

that the surface with indications faces the observation

side.

When replacing the ND filter, be sure to wait until the ND

filter cools down.

When the mercury burner is lit for a long period while an

ND filter is inserted, the filter and its metallic frame will

become very hot. Take care not to burn yourself.

Do not leave the filter slider to a position other than the

click positions for a long period.

}A filter other than ND filter can also be inserted provided that

the outer diameter is 32 mm and the thickness is 3 mm or

less.

# Use a reflection type ND filter (32ND6, 12, 25 or 50). Do

not use a commercially available low-reflection ND filter

as this may crack or burn the filter.

(Fig. 9)