Here is a list of the many sources (from word of mouth, to books, to internet videos) that were used in the the study and creation of the Camera Obscura.

The Magic Mirror of life (another Obscura Wiki) -
Atlas Obscura (with information about the Magic Lantern Castle Museum )-
Make (How to remove a U.V. coating) -
Armour Etch (Also to remove a U.V. coating) -

Herbert, Stephen. //A History of Pre-Cinema//. New York: Routledge, 2000. Print. (Volume 1,2 &3)
Mannoni, Laurent, and Richard Crangle. //The Great Art of Light and Shadow: Archaeology of the Cinema//. Exeter: University of Exeter Press, 2000. Print.
Steadman, Philip. //Vermeer's Camera: Uncovering the Truth Behind the Masterpieces//. Oxford: Oxford University Press, 2001. Print.
Lael Loewenstein. //David Hockney: Secret Knowledge//. 386 Vol. Los Angeles: Penske Business Media, 2002. Print.
Luthy, Christoph. "Hockney's Secret Knowledge, Vanvitelli's Camera Obscura." //Early Science and Medicine// 10.2 (2005): 315-. Print.

Projector Camera Obscura -
A how to Camera Obscura video -
David Hockney's film - //David Hockney: Secret Knowledge.// Dir. Hockney, David, Randall Wright, John Hooper, et al. BBC, 2001. (Book)
Secret Knowledge on You Tube -
A link to the theatre optique -