Blackwrap

What is blackwrap?  What does it do? What are 4 crafty ways you can use it on set that are mentioned in this video?

    Blackwrap (or cinefoil) is essentially a matte black aluminum foil. It's primary purpose is to block light. Four ways that you can use blackwrap on set are (1) to flag, (2) eliminate lens flares, (3) create shapes, and (4) make cookies. You can fold blackwrap into a square or rectangle and clip it on to a light in order to use as a flag that eliminates spill. You can use it to eliminate lens flares by either blackwrapping the light or the camera, so that it acts like a lens hood. Another use of blackwrap is to create interesting shapes, such as curving it around a light to create a "snoot" which creates a round gradient of light. Blackwrap can also work as a DIY cookie by cutting out the shapes that you want into it then placing it in front of a light.