Originally Posted by homerjr43
So after running through a few calibration screens, it appears that the Gamma on the seiki is way out of wack. I cannot adjust it to look good at any value from gamma 1.2-2.4. I am using the test pattern located at http://www.photoscientia.co.uk/Gamma.htm
no matter what settings i change the boxes never become gray. They stay colored. Does anyone know how to resolve this?
Hello, The patterns you tryed to set your gamma are a really waste of time, you need a meter and software to perform gamma calibration.
Calibration without meter/software can't be performed, with a disk you can adjust some basic controls and you will be able to prevent some problems.
The truth is that by using any calibration disk you just preparing the display before start using your meter/software.
Start by selecting the Cinema / Movie Mode of your display bacause this mode has always better performace vs. the other modes of you display.
In case you don't have software/hardware at home, you can set some basic settings of your display.
For example, you can set:
Brightness Pattern to set the Black Level (Brightness Control) of the Display; to prevent crushing of shadow details or raised black levels.
Contrast Pattern to set the White Level (Contrast Control) of the Display; to prevent color detail clipping up to peak white levels and above reference white level color shifts/discoloration.
Use Sharpness Pattern to prevent edge enhancement (halo/ringing effect) or soft contouring (blurring of the image details).
Use Color Clipping Pattern to prevent clipping of each color channel.
Use a Grayscale Ramp to check which color temperature mode (normal/warm1/warm2 etc) of your display looks more neutral to your eyes.
You can use the Colour Reproduction Patterns to check your display's controls / various mode settings / enhancements of your display, if they introducing problems or if they are broken and you have to leave them untouched to prevent new problems. (no smooth color graduations, distortions, discoloration, clipping, banding, posterization, crushed shadow details, raised black levels etc.)
But you can't set your peak light output, perform RGB Balance of your grayscale, calibrate your Primary/Secondary Colors (Hue/Saturation/Lightness), fix your gamma levels etc. for REC.709 without a meter/software.