Olympus BX53M - Adjusting the Aperture Diaphragm of the Reflected Light Illumination; Using the Aperture Diaphragm (AS)

26.5
50
0.80
38
1
Using the aperture diaphragm (AS)
3-12 Adjusting the aperture diaphragm of the reflected light illumination
b
c
a
When BX3M-RLAS-S or BX3M-URAS-S is combined
Move the aperture diaphragm knob
a
of the reflected light illuminator
vertically to adjust the aperture diaphragm.
Aperture diaphragm knob position (color bar)
None
(Bottom
end)
Red/
Yellow
Green
Light
blue
White
Aperture
diaphragm
(AS)
Open Close
1
Scale of aperture diaphragm knob
The color (color bar) of the scale
b
corresponds to the band color
c
of the objective. Aligning the aperture diaphragm knob
a
position
(color bar) with the band color of the objective engaged in the light path
enables to set the aperture diaphragm appropriately. (Not available for
1.25X and 2.5X objectives)
a
The picture shows BX3M-RLAS-S.
The same operation parts are also provided to
BX3M-URAS-S.
When using BX3M-RLA-S
Move the aperture diaphragm lever
a
of the reflected light illuminator
as follows to adjust the aperture diaphragm.
Aperture diaphragm lever position
Pressed in Pulled out
Aperture
diaphragm
(AS)
Open to
maximum
Close to
minimum
1
a