Hitachi Microscope & Magnifier S-3400N User Manual

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3.5    Operation for Image Observation 
3 - 44 
3.5.4    Image Brightness and Contrast Adjustment 
 
Image brightness and contrast can be adjusted both manually and automatically. 
BC Monitor mode is also available for manual adjustment. 
A histogram of present image can be shown for reference of adjustment. 
 
(1)  Auto adjustment (ABCC) 
Click the ABCC button 
  on the Control panel or select the ABCC command from 
Operate menu to start auto-adjustment. 
If the results of ABCC are not adequate, you can change the reference brightness and 
contrast on the Image tab in the Setup dialog window. 
 
 
 
Fig. 3.5-14    Adjusting the Auto Setup Level 
 
When the Dual Screen mode is used, ABCC is applied to the signal of the selected screen 
by the Signal (A/B) selection on the Control panel. 
 
 
 
Fig. 3.5-15    Selecting the Image to Adjust