As Tim Baskerville of The Nocturnes noted on his blog, "[Darius'] work resembles mostly what the Bechers work would look like, if done on acid!" Well put, Tim!
Darius' work appears to be done at night with flashlights (big flashlights) and colored gels. It probably says that very clearly on his website, but I don't speak German. So I have to guess one that point. I do, however, understand the part about his camera: a Canon EOS Rebel.
Thanks to Tim Baskerville for finding this one.