Olympus bx40 - Page 33

Fig. 31
Using the Light Preset Button
The light preset button allows you to temporarily adjust brightness to a preset level for applications such as
photomicrography, making it unnecessary to manually adjust the brightness each time you take a photograph.
+ Before shipment from the factory, the preset level is set to an intensity that is suitable for photomicrography.
+ The light preset button is also useful when using two different objectives alternatingly, allowing you to avoid
manually adjusting the brightness each time you change magnifications.
DATU
åge
1. Sliding the light intensity lever a upward increases the voltage, making
illumination brighter.
2. The numerals to the right of the LEDs of the voltage indicator @ indicate
the voltage.
Bone
The light preset button @ makes it possible to set the light intensity to
a preselected level regardless of the position of the light intensity lever.
1. Push the light preset button @ to the ON position.
(The face of the switch lights when the switch is ON.)
2. Using a small screwdriver, turn the preset adjustment screw to obtain
the required light intensity. Turning the screw clockwise increases
intensity.
3. Switch the light preset button OFF and brightness returns to the level
set by the light intensity lever.
*
The light intensity lever does not affect brightness while the
light preset button is ON.
You can place to two 45 mm diameter filters into the filter holder on
the light exit at the base of the microscope. If you need to use more
than two filters at once, use a filter cassette.
* When using a filter cassette, you can additionally use a single
filter with a thickness of less than 3 mm over the light exit glass.
A=11