Typical Test Pattern For Adjusting Sharpness - Runco CL-420 Owner's Operating Manual

Operation
Sharpness: "Sharpness" is the amount of high-frequency detail in the image. To adjust
sharpness, select Sharpness from the Picture Adjust menu and press ENTER. On your
external test pattern source, select a pattern like the one shown in Figure 4-8. Adjust as
needed, looking for white edges around the transitions from black to gray and different
sized lines in the "sweep" patterns at the top and bottom. Lower the sharpness setting to
eliminate them.
Figure 4-8. Typical Test Pattern for Adjusting Sharpness
Gamma: The Gamma control determines how gray shades are displayed between
minimum input (black) and maximum input (white) for all signals. A good gamma setting
helps to optimize blacks and whites while ensuring smooth transitions for the
"in-between" values utilized in other grays.
Unlike brightness and contrast controls, Gamma allows you to lighten or darken the
overall tone of your images without changing the extremes. All images will be more vibrant
while still showing good detail in dark areas.
The default Gamma setting of 2.2 is appropriate for most typical home theater
environments.
38 Runco CL-410 and CL-420 Owner's Operating Manual