I'm looking to shoot a scene where a rainbow of refracted light from a prism plays over a young girl's face. Can anyone tell me how to achieve this?
Posted 07 August 2013 - 01:44 PM
High Lumen video projector with digital rainbow/prism footage. If you try a prism you might find you will need a very large one to cover the face. You might be forced to move the prism too close to the face and will look too immediate giving away the gag. I mention digitally created prism look because the light from an actual prism is very saturated and you will want to mimic this. Im sure you could just shoot footage of a prism effect with different angles of the colors as well. You could also try using a zoom leko with a removable side door. With the door open you could try to focus the beam into a prism and use the front elements to widen out the effect. Kinda doubt it would work but its worth a try. What i think will be the biggest issue is controlling the size of the rainbow. You might find a small one looks right but if you decide a larger more full-face effect would fit the story better you need to be prepared for this. Whatever method you find works its possible you will need to flag/scrim the spilling light that hasn't been separated off the talent so as to not compete with the effect. Let use know what you come up with.
Posted 08 August 2013 - 07:38 PM
Slide projector is another option. If you make up a slide with red, green and blue gels in it, then project it very defocused, you should get a spectrum.