APHS Ortho Litho Film With Yellow Filter Test

Used a Sunpak Y2 filter to see if I could get any cloud detail in the sky. Without a filter, this film tends to give blank white skies. This was from several months ago, processed in food storage container trays, using an earlier more concentrated developer than I'm using now. Exposure was not long enough to produce any shadow detail in the foreground. The exposure factor for this filter and film seems to be about 3x to 4x.