Different Bulbs Effecting Color

[swiperstopswiping]

I've been reading over a few lighting forums, and have found that a twin 500 watt halogen light system with the tripod (you know, that yellow light thing) is a cheap and effective way to go. However, I was reading on, and realized that the photos that were posted on the forum included pictures of the Halgoen light setup with the included light bulbs (that came with the purchase) and then also pictures of the halogen light setup with Ultra white bulbs. The photo with the Ultra white halogen bulbs looked a lot better, with a very natural tone to the pictures. However, my main reason for posting this is:

Why would the pictures really look that much different? I understand that one bulb is ultra white as opposed to not ultra white, but they are STILL both halogen bulbs. Shouldn't they still emit a very simililar color of lighting assuming the white balance was appropirately updated for each photo that was taken using the different bulb??

 

[Joshua Provost]

The best light in the world in sunlight, because it's got a fuller spectrum of light, from reds to blues. Halogen are very limited and usually down on warm end, with a red/yellow look. Video cameras work better with daylight than with tungsten or halogen, since they don't have to do such an extreme white balance to boost the missing blues. Adding the "ultra white" halogen bulbs, which are coated in blue, gives you a fuller spectrum of light and the image quality will be better. It's almost like adding CTB to the lights, except its coated right on the bulb.

Better still would be full-spectrum daylight flourescents with a color temp from 5000-5500 and a CRI > 95... or HMI... or real daylight.

 

[swiperstopswiping]

Won't the Fluorescent lights leave a green tinge that is noticeable to the human eye? Would you say that the fluroescents with the color temp from 5000-5500 would look a lot better than the Ultra White?