I was looking at two books, and wonder if anyone has read them, or thinks that either of these, or another book on filters, might be worth reading?
Mastering Filters for Photography, Chris Weston, 2009
The Photographer's Gudei to Filters, Lee Frost, 2004
Mastering Filters for Photography, Chris Weston, 2009
The Photographer's Gudei to Filters, Lee Frost, 2004