Black by Andreas Levers Via Flickr: I used a slight variation of the dark field technique described in the book "Light: Science & Magic". A 300W flash set to maximum output fired through a translucent sheet of white acrylic. A black sheet of plastic between the acrlic and the glass is the dark background. The 300W flash was triggered by an on-camera Speedlite 430EX that pointed to the left side. On the left a bronze-colored reflector bounced the comparatively low amount of it’s light. The post processing includes removal of some drops that were out of focus, level adjusments and cleaning the glass. The background was extended slightly.