From: George L Smyth (glsmyth@yahoo.com)
Date: 09/18/02-01:50:49 PM Z
Liam -
Okay, I'll give the distilled water a shot. I guess it is possible that the
water I am using may have changed without me knowing.
The lighter areas of my print darkened, which is why I believe that I lost
contrast. I'll test this out when the paper situation gets cleared.
Thanks -
george
--- Liam Lawless <liam.lawless@blueyonder.co.uk> wrote:
> George,
>
> Sorry you're still having trouble. My guess is that another process
> (cyanotype, etc.) wouldn't necessarily do the same thing, but one other
> suggestion. After printing, give the first rinse in pure water
> (distilled/deionised), or tap water that has been boiled and allowed to
> cool. Not a lot needed - say about 250 mL for an 8X10 - and leave it on the
> print for about a minute, then continue washing for another minute or two
> under the tap. This *might* work because tap water can cause problems in
> some locations, forming compounds that produce stains (oddly, often not
> until the final wash). I suspect that a lot of dissolved oxygen in the
> water is the culprit (forming silver oxide), but that's only a guess; the
> first rinse with pure water carries away any free silver nitrate before it
> can react. (Note that pure water stays clear, whereas boiled tap water
> turns cloudy, but this doesn't matter.)
>
> Maybe this isn't your problem since it wasn't mine. But I have had it with
> salt prints and another process I'm working on, so good luck! A second coat
> should increase contrast/D-max, not reduce it, but will take longer to
> print.
>
>
>
> Liam
=====
Handmade Photographic Images - http://GLSmyth.com
DRiP Investing - http://DRiPInvesting.org
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