What is White Balance?
I did not know how to adjust the white balance on my camera. First of all what is white balance?
With doing the research on the web and reading about it I found out : When a camera has been calibrated to correctly display white, then the camera is white balanced. Once it is calibrated for white, other colors should display properly.
Sometimes you want the picture to come out with warmer tones, sometimes you want the blues to be vibrant. So, it all boils down to the concept of color temperature.
Color temperature is a way of measuring the quality of a light source. It is based on the ratio of the amount of blue light to the amount of red light, and the green light is ignored. The unit for measuring this ratio is in degree Kelvin (K). A light with higher color temperature (i.e., larger Kelvin value) has "more" blue lights than a light with lower color temperature (i.e., smaller Kelvin value)
Digital cameras are set to automatic white balance by default. Automatic white balance does a very good job under most circumstances. However, there are times when white balance needs to be changed manually to match the inside or outside lighting in order to obtain more true-to-life colors in a photo.
My camera the Nikon D70s has AUTO which I use most of the time. But the other settings are
described well in this chart http://www.bryanhansel.com/articles/extras/d70wbchrt.pdf
I also adjust the color temperature of the picture after I have taken the picture when I edit. Sometimes I edit with Picasa which is elementary but simple.
