Adjusting Gamma

You can adjust the gamma to improve differences in halftone brightness that vary depending on the connected device.
Note: Project a still image to adjust the gamma; you cannot adjust it properly when projecting a movie or other moving video. Medical images many not reproduce correctly depending on your operating environment and screen.
  1. Turn on the projector and switch to the image source you want to use.
  2. Press the Menu button.
  3. Select the Image menu and press Enter.
  4. Select Advanced, select the Gamma setting, and press Enter. You see a screen like this:


  5. Use the arrow buttons to adjust the value of the Gamma setting as follows:
    • To brighten darker areas of the image, select higher gamma values. (Color saturation in the lighter areas may become weaker.)
    • To reduce overall image brightness and sharpen the image, select lower gamma values.
    • If you are projecting using DICOM SIM as the Color Mode setting, adjust the gamma according to the projection width. If it is less than 150 inches (3.81 m) wide, select a smaller value; if it is wider, select a larger value.
  6. To adjust specific tones in the gamma using a graph, select the Custom setting and press Enter. You see a screen like this:


  7. Press the left or right arrow button to select the tone you want to change, then press the up or down arrow button to adjust the tone and press Enter.
  8. Press Menu to exit the menus.
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