Quote Originally Posted by rogueish
I know I asked for it when I always comment on the humour around this place!
If someone could expand on donbga's comment "to expose UV sensitive material." (Unless of course it really is to get more vitamin D...)
Not the best person to answer this, but will try..Plt/Pld prints, Ziatypes, VanDykes, etc. Do a google search for alternative photography or visit some of the member sites here..another that might help is www.kerik.com, good web site and links to others.

Good luck..and if you have never seen a plt/pld print...find some place that has them - gallery/museum and have a look. They are wonderfull.

Hope this helps!