The difference between blue and green screens?

I know that both type of screens are use in special effects. What is the difference?


For example rayan-w.com] click on special effect, then misc. effects. Click and watch movie from AOTC. That use of green screen.


When do you use a blue screen and why?

 

One is blue and one is green. No, really. That's it.

If you light your screen and actors correctly you can use either to good results. It seems that for blonde haired blue eyed actors you are better off with the greenscreen. If your actors are wearing one of the colors then pick the other color. Actor in green - choose bluescreen, etc...

Either way, you can pull a good key if you light correctly.

Do a search on the fan films board for blue or green screen and you'll get plenty of threads on this subject.

 

That's pretty much the only difference, is in what color your actor is wearing when standing in front of it. You also want to consider what you're filming on.. For film, it really makes no difference at all, they key equally well. For DV, green is better since the green shows up clearer in the luminance channel of the footage (it's a "brighter" color than blue), and can be used to get rid of the otherwise inescapable jagged edges inherent to DV footage.

 

Thank you everyone.

 

I used tellow once when it was all I had, it worked perfectly fine too.
well it wasnt a screen it was a big yellow corner hunk of chipboard. Still worked fine

 

Here's a little more background (no pun intended) into the differences and reasons behind blue vs green screens:

Bluescreen/Greenscreen information

Have fun.