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- Newsgroups: rec.photo
- Path: sparky!uunet!psinntp!adcmail!briang
- From: briang@atlastele.com (Brian Godfrey)
- Subject: Re: Swelling of wet paper
- Message-ID: <1992Dec23.002911.18624@atlastele.com>
- Organization: Atlas Telecom Inc.
- Date: Wed, 23 Dec 1992 00:29:11 GMT
- Lines: 34
-
- In article <2300088@hpgrla.gr.hp.com> peterd@hpgrla.gr.hp.com (Peter Davidoff) writes:
- >Swelling
- >^^^^^^^^
- >
- >The swelling of the *gel* increase the light diffusion, and when
- >the paper dries (gel dries) and condenses, the exposed bromiedes
- >condense -- we get *dry down*.
- >
- >I've noticed that different papers have considerably different
- >swelling and dry-down. The arista classic I use for Carbro has
- >significant swelling and significant drydown, on the order of 20-25% !
-
- It seems to me that if one were interested in maximizing sharpness of the
- final print, one would print on wet, swelled up paper. I might try that,
- just for kicks, and see what happens. I presume I will see an increase
- in contrast as well as sharpness. Blacker blacks, etc. (Like when you
- inflate a balloon and write on it, then deflate it. The writing gets
- real contrasty and black.) I have a wonderful negative which needs a
- real hard paper to print well. I think I might try it with this method.
-
- I don't know anything about Carbro, or Arista papers. Is Arista Classic
- an ordinary B&W paper? Does it process normally? (Dektol, etc.) Where
- do I get it? (I don't think I've seen it locally.)
-
- If I use a B&W paper like Agfa Brovira or Oriental, etc. will it swell
- more if I soak it in warm water (not hot enough to remove the emulsion,
- but warmer than my usual 68 degrees?)
-
- Has anyone tried anything like this and can save me some work if it's a
- stupid idea? :-)
-
- --
- --Brian M. Godfrey
- atlastele.com
-