A recent comment I made on one of Craig Wilson's KAP photos posted at flicker
got me to thinking about how my camera handles White Balance. I have always used the Auto White Balance setting on my Canon SD 20, but I thought it would be interesting to see how each of the camera's seven White Balance settings handled an identical shooting situation.
The HAP (Human Aerial Photography) image below was taken outdoors on an overcast day. Sunny and partly cloudy conditions might yield different results for some of the settings. The RGB values where measured in the snow areas of each strip. Ideally all values should be the same, in real life there is always slight variations. The values listed are just representitive of the average.
This is probably a worthwhile exercise for those using digital cameras. It would help you make more educated decisions about camera setup before each flight. You would want to perform the test for the three main outdoor lighting situations; Sunny, Partial Clouds, and Overcast.SUMMARY
AUTO - slightly elevated blues
SUNNY - Cyan color cast
CLOUDY - normal
Tungsten - Strong Blueish-Cyan cast
Fluorecent - Cyan color cast
Fluorecent H - normal
Manual - normalFluorecent H is for daylight fluorecent bulbs
Manual is set using a white object under the same light conditions.www.kaper.us