background image

    observations using the electrical LED lighting and the electronic LCD 

    eyepiece (screen module). Insert the plug end of the AC adapter into 

    the proper power source

Illumination

    To get the sharpest and best views, the proper illumination or lighting 

    must be chosen.

 

Oblique Lighting 

 

Or top lighting is normally for solid objects (not on a specimen 

             slide) so light shine down onto the object.

 

Transmitted Lighting 

 

Or bottom lighting is used for specimen slides where the light  

 

shines up through the hole in the stage through the slide.

    Having both oblique and transmitted lights on at the same time can 

    provide enough light for semi-transparent specimens.

    The lighting switches are located near the base of the microscope on 

    either side of the microscope. Adjust the level of brightness by turning 

    the switch slide.

Using the Microscope with the LCD Screen

Carefully place the LCD screen into the tube of the microscope. 

1. Begin each observation at the lowest magnification. To adjust the 

    positioning of the specimen move the microscope table, using the 

    focusing wheel completely down and then turn the lens turret until it 

    engages on the lowest magnification (the 4x-objective is vertical).

2. Place specimen directly under the objective of the microscope stage 

    and exactly above or below the illumination, if the specimen is on a 

    microscope slide clamp it onto the stage of the microscope. For this, 

    move the lever for the clamping mounting plate to the side, put the 

    slide onto the stage and carefully allow the clamping mounting plate to 

    return onto the prepared slide. If necessary use mechanical stage 

    controls to move the slide forwards and back and/or left and right.

3. Then switch on the LCD monitor, by pressing the power switch on 

    the screen module; the red operating light will light up. Look at the 

    LCD screen and adjust lighting and focusing wheel until the image is 

    sharp. With the stage you can now center the object at the desired 

    place on the LCD monitor. 

www.barska.com

4. For higher magnification turn the lens turret to a higher setting 

    (objectives 10x and 40x).

    

Notes:

 Before you change the objective setting, first move the 

    microscope table fully downwards. This will avoid possible damage to 

    the objective lens and to the slide. 

    The higher the magnification, the more light is needed for a good 

    image quality.

    Depending on the preparation in use, higher magnification in individual 

    cases will not lead to a better picture. The magnification is altered by 

    changing the objective. This alters the sharpness of the image which 

    must be adjusted by the focusing wheel. Proceed here very carefully, 

    if you raise the microscope table too quickly, the objective and the 

    slides can touch each other and be damaged

5. The magnification factor of the LCD eyepiece amounts to 10x. In 

    combination with the 4x-objective we obtain a total magnification of 

    40x, i.e. 1 mm of the object is shown as 40 mm on the LCD 

    monitor. With the 10x objective we have a total magnification of 100x, 

    correspondingly, with the 40x objective 400x.

6. To zoom in digitally, press the “up” or “down” arrow keys located on the 

    right of screen. The digital magnification of the image can be zoom 

    with set with a factor from 1 to 4.

Colored Wheel Filter Disc

    The color wheel filter disc is located beneath the microscope table 

    helps you when viewing very bright or transparent specimens. For 

    this please select the suitable color depending upon the object being 

    observed. The components of colorless or transparent objects 

    (e.g. grain containing starch, single-celled organisms) will be much 

    easier to recognize. Filter colors are violet, yellow, light green, green  

    and blue. 

Icons On the LCD Screen

    If you switch on the LCD monitor, you will see the live image of your 

    object as well as three different displays.

1. Lower right is the remaining internal storage capacity of the screen 

    module available for image files and showing picture’s resolution 

    above it. Quality: Fine (

) , Standard(

) and Economy( )

www.barska.com

4

5

Reviews: