Asking green screen tips to video experts

Our department decided to use grant money for purchasing green screen from the following site. 

http://www.tubetape.net/servlet/the-636/Essential-Chromakey-Video-Kit/Detail

Could you share any tip to use green screen? I have been using Premiere pro, and After effect from my personal interest. Yet, I did not use Green Screen stuff before.

4 Replies
Bob S

Hi Sammy,

Not sure what sorts of tips you are looking for, but if it includes your physical set-up/studio, here a couple...

* 5 point lighting is better than 3 point if you have the space.  With three point lighting (key, fill, back/halo) you can create shadows on your green screen that make it harder to get a clean key in post. 5 point adds two more lights that evenly "wash" the green screen making it appear more consistent and allowing a cleaner key.

* Consider using a magenta gel on your halo/back light. It will visually pull your subject off the green background - again making a cleaner more professional looking key.

* Wrinkles are no fun to key out. If you have the space, consider painting one wall in chroma key paint instead of dealing with a green drape. Rosco's version of this paint will allow you to get a nice even color. AND as a side benefit you will have a bigger screen to work with than you might otherwise - great for action shots or two actor shoots.  (NOTE:  You may still want curtains that can be pulled to cover the green for non chroma key shoots).

* For keying, remember to record in the highest resolution possible .... THEN down-convert after you've pulled a key and done your other post production work. It will look far more natural that way.

* While many/most NLEs (non-linear editors) have chroma key functions built in, you may want to consider specialized plug-ins that work with your NLE software. This is one of the great advantages of working with industry standard software as plugs-ins can make your world a whole lot easier and yield great results for low cost.

Hope these help and good luck!

Bob