Stanley Kubric used candle

Stanley Kubric used candle light, when everybody else said it was impossible… now anybody with a newer d-slr and a fast fifty (I use a Pentax 50mm 1.4) can do what Kubric had to hack a used NASA hasselblad lens (f .07 I think it was..not sure) to do.. Stan was a hacker too…lol!
http://www.youtube.com/watch?v=d6y0oD-Mkgo