Diffusion question

[Scenemaster60]

I am being very lazy right now. I have done a few searches and have come up with nothing valuable.

What Roscolux diffusion is combined with the primaries in R120-R122?

I want recreate the effect of R121, but by combining R65 with the proper source diffusion.

 

[derekleffew]

...What Roscolux diffusion is combined with the primaries in R120-R122?

R100 Frost.

...I want recreate the effect of R121, but by combining R65 with the proper source diffusion.

Too bad they discontinued "Daylight Frost" which was R67(I think?)+R100. I can't remember the number.

It wasn't R123--that's a different mystery.