Made with unmodified but damaged Turner Reich 12 1/4" f7 lens wide open.  On one of the groups there is a bizarre pattern in the cement very much like the intricate swirls of a finger print and about that fine.  It covers the entire optic and has a marvelous softening effect.  When you stop down it gets blurrier....but with increased depth of field.  A very weird lens that I need to PLAY with much more.