Re: Roller for gum (was: Re: humidity in your darkroom........

From: Katharine Thayer ^lt;[email protected]>
Date: 01/17/04-12:11:02 PM Z
Message-id: <> wrote:
> I don't do any gum yet, but I wonder if humidified paper would lead to
> easier coating? 

Steve Anchell said so, but I've never tried it as I have no difficulty
coating smoothly (possibly because I live in a humid climate?).

 And, how much would humidity effect DMax (maybe not
> so much?), Tonal Range, eveness, etc working with Dichromates? 
> According to Sandy King, it sure does have an affect on Carbon, and
> Carbon uses dichromates.... hmmmmmmmmmmm

Nope, none of the above, that's what I meant when I said that humidity
has little effect on gum; I meant it has little effect on how gum
prints. Carbon and gum both use dichromates, but that doesn't mean they
are the same process or work the same way, and I think some of the
confusion that happens here happens because people think the two are
more similar than they actually are.

> Mark Nelson
> In a message dated 1/17/04 2:29:04 PM, writes:
> I agree with Dave about humidity having little effect on
> gum. But I have
> wondered if perhaps humidity might have something to do with
> the fact
> that coating with a roller doesn't work for me.
> At the time that I reported my failure with the roller, I
> tried to post
> a jpeg to the Bostick & Sullivan forum, but the upload
> didn't work, so I
> gave up on it. But while working on my website this
> morning,  I came
> across the jpeg, and now that I know how to FTP things to my
> ISP's
> server, I thought I may as well put it up for you all to
> look at.
Received on Sat Jan 17 20:07:24 2004

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