Optoma EH7700 User Guide - Page 28
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User Controls IMAGE English 28 Display Mode There are many factory presets optimized for various types of images. Presentation: Good color and brightness from PC input. Bright: Maximum brightness from PC input. Movie: For home theater. sRGB: Standardised accurate color. Blackboard: This mode should be selected to achieve optimum color settings when projecting onto a blackboard (green). DICOM SIM.: This display mode simulates the greyscale/gamma performance of equipment used for "Digital Imaging and Communications in Medicine" (DICOM). IMPORTANT: This mode should NEVER be used for medical diagnosis, it is for education/training purposes only. Brightness Adjust the brightness of the image. Press the to darken image. Press the to lighten the image. Contrast The contrast controls the degree of difference between the lightest and darkest parts of the picture. Press the to decrease the contrast. Press the to increase the contrast.