I want to calibrate my 32lg30 to eliminate the blueish blacks. The only two settings I am not really sure about are the backlight setting and the gamma setting. What exactly does gamma do, and should the backlight level be high or low?

Greetings

Backlight ... depends on the room and the ambient light in it.

Regards

I really cant explain exactly what gamma is but in CRT projectors and in some digital displays after you do a greyscale calibration you may end up with crushed blacks or crushed whites. With some VP processors and the Best of TV's you can adjust either the over all Gamma that is done on a curve or at certain points along the IRE Greyscale ramp(0-100) to raise the shadow detail in the lower IRE's that is the black levels and also you can lower the whites so you can see shadow details there like is a snow scene with out really altering the grey scale to much. Having detail in the shadows and in the whites will give more depth of field and a 3D look. If you do not have that shadow detail at both ends your image will suffer from a flat looking depth of field. I may have not explained it exactly and I am sure the experts will chime in and correct me.

here is a technical explanation of Gamma:

The Rehabilitation of Gamma (http://www.poynton.com/PDFs/Rehabilitation_of_gamma.pdf)

Athanasios

What exactly does gamma doGamma controls the brightness/darkness of the picture's middle tones. Darker midtones result in a deeper, more "contrasty" image. Brighter midtones result in a flatter, less-contrasty picture.

Higher Gamma values produce darker midtones and a more contrasty image, though many displays reverse this in their controls making the higher Gamma settings brighter rather than darker.