Re: How many gum layers (Re: ferri sesquichlorati)
Katherine, You may be correct. I think that matching the exposure scale of gum with a negative that has the proper density range just puts you closer...along with a good curve. For tri-color this is probably all that is needed, or very close. For other methods of printing, I think it would be helpful, but a person might still want to do additional printings to get the effect they want. I don't remember Chris saying that doing so would give the effect of a Carbon print. I thought she said it would improve the print, which I would agree with. Going around and around sure makes a person dizzy. Best Wishes, Mark Nelson Precision Digital Negatives - The System PDNPrint Forum at Yahoo Groups www.MarkINelsonPhoto.com Military Commissions Act of 2006 - A STAIN on our Nation's History In a message dated 10/24/06 11:57:18 AM, kthayer@pacifier.com writes: I don't know... around and around and around we go. We had a spirited debate about this a while back that started around the question of top-down vs bottom-up hardening. Chris issued a challenge: she said that using the method of matching the negative to the short scale of gum, she would be able to equal the tonal scale of a carbon print with a one-coat gum. I said, well, I'm skeptical but I'm willing to be shown. But when she finally posted the print, it was just your usual one-coat gum, with a couple dark tones, a couple mid tones and a couple light tones, but nothing like subtlety of tonal gradation throughout a long tonal scale that's possible with a carbon print, or with multiple printing with gum. As I said, so far the only example of a one-coat gum I've seen that seemed to live up to that ideal was Marek's back-printed flowers; nothing else has come close. So, until someone shows me something more interesting, I'll continue to say that the only way to do that is with multiple printing. Katharine
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