For color separations, you will probably need to do some experimentation to get the exposures right on. But filter factors provide a starting point. PL- 100-M is a pretty ordinary Type B panchromatic film. For similar Kodak films, the tungsten filter factor for the No. 29 filter is 8. There is no listing for the 47B or 61 filter, but the factor for the 47 (slightly lighter than the 47B) is 10 and for the 58 (somewhat lighter than the 61) it is 8.
Kodak Pamphlet E-80 (January 1972), "Kodak Dye transfer Process". lists the following recommendations for direct separations using Kodak Super-XX film (ISO 200) with 450 foot candles of 3200K incident illumination on the subject: No. 29 - 15 seconds at f/16; No. 61 - 12 seconds at f/16; No. 47B - 20 seconds at f/16. It recommends developing direct separation negatives to a gamma of 0.90. For separations from a transparency, the same document recommends using an enlarger, setting the lens to f/4.5, and adjusting the illumination to give 3 foot candles at the exposure plane without filters. Then expose Super-XX as follows: No. 29 filter - 25 seconds at f/8; No. 61 - 15 seconds at f/8; No. 47B - 30 seconds at f/8. Develop the film for a gamma of about 0.70. A density of 3.0 in the transparency should give a density of about 0.35 to 0.40 in the negative.
I hope this helps
Last edited by nworth; 08-16-2011 at 04:27 PM. Click to view previous post history.