Seiko Group POWERLITE 7500 UB User Manual

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Making Basic Adjustments
Advanced Color Adjustments
To further customize the color and image quality, you can adjust the gamma and individual 
RGBCMY color tones. (Not available when 
x.v.Color
 is selected as the Color Mode.)
Note: You can fine-tune these and other color and image quality settings using the projector’s 
menu system (see page 33). You can also save combinations of picture settings with the Memory 
feature for easy recall (see page 42). If you don’t like the settings you have selected on a particular 
menu screen, you can press the Default button to restore the factory settings.
Adjusting the Gamma Setting
You can select from five gamma settings (2.0 to 2.4) or customize your own setting from your 
image or a displayed graph. Lower values will increase the contrast of dark areas, but tend to 
blur the bright areas. Higher values will darken the light areas. Gamma presets make minor 
adjustments to mid-tone values. The larger the gamma preset, the lower the midtone values. 
Changing these settings affects contrast which can be seen as a blur in bright areas.
1. Press the 
Gamma
 button. You see the following displayed on the screen:
Gamma
RGBCMY