Quote Originally Posted by Curt View Post
Bob, What, what, what, I'm at a brain cell loss this evening, first what is the Scala Drop process, and second can you explain the Rollie ISO 25 in HC110 to tasted , red green blue laser exposure for someone with only a Bachelor of Science degree?

Thanks very much,
Curt
I don't know what the Scala Drop Process is, but Bob is saying to make the interpositive so that it contains all the detail and texture one might wish to print. (Whatever the Scala Drop Process it, it is not the only way to do this.) Then, when making the negative, one can decide which detail to include or exclude, by way of exposure and processing.

It also sounds like Bob now uses an exposure unit or enlarger head that uses separate R/G/B lights to make white light.