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 VIII 
Troubleshooting  
 
2  Image Output 
- 159 - 
Symptom Corrective 
action 
 
  The color is poor. 
•  Set the white balance.   
=> See “2 Photographing Images” in Chapter VI. 
•  Apply a moderate amount of color compensation.   
=> See “2 Photographing Images” in Chapter VI. 
•  Turn off hue adjustment.   
=> See “2 Photographing Images” in Chapter VI. 
•  Set the color temperature of the internal monitor and external monitor 
to an appropriate level.   
=> See “1.4.4 Adjusting Monitor Output for an External Monitor” in 
Chapter VI. 
•  Set the color temperature of the illumination to an appropriate level. 
   
 
  The contrast is low. 
•  Set the tone appropriately.   
=> See “2 Photographing Images” in Chapter VI. 
•  Avoid adjusting the black level to the positive side of SFT. 
=> See “2 Photographing Images” in Chapter VI. 
•  Adjust the size of the field diaphragm so that it circumscribes the 
viewfield. 
•  Adjust the size of the aperture diaphragm to approximately 70% to 
80% of the numerical aperture of the objective. 
=> See “Chapter V Microscope Adjustment.” 
•  Use an appropriate filter. 
When using a phase contrast microscope or an interference 
microscope (two luminous fluxes or multiple luminous fluxes), insert 
the specified filter. With a black and white image, contrast is improved 
by inserting a green interference filter (GIF). Contrast in color images 
is enhanced by inserting a filter having a complementary color to that 
of the specimen. 
=> See “Chapter V Microscope Adjustment.” 
•  Adjust the ambient light around the microscope. 
Make the room darker, or place caps on the binocular eyepiece, for 
example. 
•  Check the contrast of the specimen itself. 
   
  Noise appears at the 
edges of the menu 
when shown on an 
LCD monitor or 
projector. 
•  Adjust the clock phase of the LCD monitor or projector.   
=> See “1.4.4 Adjusting Monitor Output for an External Monitor” in 
Chapter VI.