Just saw these pictures on Pbase, I wonder how he did it. (I once experimented with light during print development and it had some comparisons but this seems to controlled for that technique.)
http://www.pbase.com/inti/image/40365562
http://www.pbase.com/inti/image/40452511
http://www.pbase.com/inti/image/40449909
http://www.pbase.com/inti/image/40365799
http://www.pbase.com/inti/image/40437676
http://www.pbase.com/inti/image/40365506
http://www.pbase.com/inti/image/40366784
http://www.pbase.com/inti/image/40653610
http://www.pbase.com/inti/image/53784253
http://www.pbase.com/inti/image/55010580
http://www.pbase.com/inti/image/40365562
http://www.pbase.com/inti/image/40452511
http://www.pbase.com/inti/image/40449909
http://www.pbase.com/inti/image/40365799
http://www.pbase.com/inti/image/40437676
http://www.pbase.com/inti/image/40365506
http://www.pbase.com/inti/image/40366784
http://www.pbase.com/inti/image/40653610
http://www.pbase.com/inti/image/53784253
http://www.pbase.com/inti/image/55010580