Mentioned in the thread on Footlights was the question of photo call. For all of the theatres that I have worked for no lighting was altered for photo call. Since legally the recording of shows on video (or audio) is not permitted, most designers don't design for that. However, if an recording agreement were reached with the licensing firm and the actors the design would not change. For photo call, you just have to know how to take the pictures correctly. Especially with the newest generation of DSLRs it is getting easier to shoot in low light and get good quality photos. Take a look at my website, all the theatre photos were taken from 30 or more feet from the stage with a fast lens and a tripod. They come out great, and the cameras that are newer than mine are even better. Digital cameras automatically compensate for white balance, which helps a lot. Sometimes you have to be picky about how the light metering is done though, so you get the right exposure. The same results can be achieved with film in fact this show was shot on film and scanned. The key to shooting film is knowing that you need to color correct. If you go to the store and buy a roll of Kodak Gold film and shoot it in the theatre, all your prints will come out yellow. Why? Because the film is not balanced for tungsten light. So you have two choices, shoot tungsten film or use an 80A blue correction filter. The above mentioned photos were shot on ISO 1600 speed film with an 80A filter. The other key to photo call is that it is photo call. Taking photos during a show is hard. In low light you need slow shutter speeds which means that if actors move the image gets blurred. So at photo call the actors may take a few lines and then hold a pose so the photographers can shoot. The other thing that slow shutter speeds mean is that you need a tripod! Holding a camera still at a shutter speed slower than 1/30 of a second is really hard. Fast lenses are useful, but expensive, if you have good glass you can usually make do. I am less in touch with the video world, but I know that we have some video heads here so maybe they can pitch in as to how filming shows works.