If we include film exposure and development along with choice of paper and paper developer, we can spread the tones out.
We already do this, since no lenses give us as much contrast as the subject starts out with. It's just a matter of degree.
In BTZS testing, a correction is made for flare. In the end it affects what we consider our effective film speed, developing time etc.
Perhaps a BTZS adept could explain what happens when we allow "a much greater" correction for flare. I presume we lose more film speed and develop longer. Sounds like contrast control to me.
Bookmarks