Don't quote me on this, but I believe I have heard that VC emulsions are made from mixing two emulsions together that are laid down at the same time -- not two distinct layers. ...
That's my understanding too, two and even three sometimes, also done for film emulsions. Different halides are used to optimize toe and shoulder characteristics at the same time.
Last edited by RalphLambrecht; 04-30-2011 at 11:41 AM. Click to view previous post history.