Videomaker – Learn video production and editing, camera reviews › Forums › Specialty Topics › Special Effects › special effects questions › I have seen this done but it
I have seen this done but it doesn't involve lenses or filters. You just have to light your actor fairly brightly and make sure a minimum amount of light falls anywhere else. I once did a photo shoot where I experimented with the lighting, using barn doors to keep the light off the background. I could see the background fine, there was still some light falling on it, but the film didn't pick it up and it came out almost black. The technique involves using a black background and having any actors you don't want seen to be completely covered in black (something not shiny). Anything black will come out underexposed and will blend into the background, just don't cross in front of the actor you want to film and you'll be fine. This technique does have it's limitations so green screen might be a better way to go. Hope that helps.