Density Range for different materialsgreenspun.com : LUSENET : Large format photography : One Thread
I'm trying to get an idea on the Density Range required in a negative for the various printing materials.
1. Gelatine Silver Paper = 1.4 - 0.3 = 1.1 (I think)
2. Azo contact printing paper: ?
3. Platinum paper: ?
4. Pt/Pl paper: ?
5. Palladium paper: 1.95 - 0.3 = 1.65
6. Salted paper: ?
7. Albumen paper: ?
8. Gum Bichromate paper: ?
Thanks again folks,
-- Aaron (email@example.com), January 27, 2002
And POP too. Aaron
-- Aaron (firstname.lastname@example.org), January 27, 2002.
Ah! I was going to suggest getting the book "comming into focus" but I see you are not in the US, so I don't know how easy will it be for you to get it, so I will post some of the answers for you.
Salted prints 1.8 to 2.0 density range (2.2-.3)
Albumen 2.0 to 2.5
pt/pd 1.8 to 2.0
POP 1.8 to 2.0
These are some of the ones I could find for you in this book, I should note that I only have experience with pt/pd and that I have standarized at 2.0 because of my UV source. So by no means I am an expert on the other ones, but they should be good for a guideline. Good luck!
-- Jorge Gasteazoro (email@example.com), January 27, 2002.
The density range for various grades of silver paper will vary according to grade. In addition, density range will vary slightly by manufacturer.
-- Kevin Kolosky (firstname.lastname@example.org), January 27, 2002.
Thanks Jorge, Kevin. Any one to fill in the blanks for Azo and Gum?
-- Aaron (email@example.com), January 28, 2002.
Single-coat gum: 1.5 Dmax
Salted paper: 2.6 - 3.0 Dmax
Kallitype & Vandyke: 2.6 Dmax
-- Ed Buffaloe (firstname.lastname@example.org), January 29, 2002.
What about Azo? Thanks, Aaron
-- Aaron (email@example.com), January 29, 2002.