Archived posting to the Leica Users Group, 1999/01/28
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 08:32 PM 1/27/1999 -0800, Jim Brick, you wrote... <snip> >This system was made up of a split filter system. A percentage to the >yellow-green light and a percentage to the blue-red light. Percentage >switched by the paper grade chosen. > >Is this Split Printing? > >Jim > Yes. The green light exposes the low-contrast layer, the blue light exposes the high contrast layer. The setup you describe is just a "serial" version of the way the Ilford Multigrade head works. The Ilford head has two separate lamps and fixed dichroic filters, one blue, one green. The controller controls power and exposure time to each lamp so both exposures are concurrent. A neat feature of this controller is that you can program sequential exposures, allowing you to burn different areas of the print at different contrast grades. - -Mike