That would be a reflective densiometer rather than a transission one?
Chris
> Date: Sat, 21 Apr 2012 22:56:14 -0400 > From: eugene@xxxxxxxxxxxxxxxxx > Subject: Don't get rid of your densitometers, yet > To: photoforum@xxxxxxxxxxxxxxxxxx > > Here's an interesting use for them in an article entitled > "Secrets revealed by dirty books from medieval times" > > From the article > "A machine called a densitometer was used to reveal the dirt contained within the pages of books." > > http://www.bbc.co.uk/news/uk-scotland-17797190 |