The primary reason for using water over an acid stop bath is that, on some
emulsions, there is a danger of developing pin holes due to the liberation
on gas as a result on neutralising the alkaline developer.

Bob
----- Original Message -----
From: "Bill D. Casselberry" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, March 16, 2002 2:51 AM
Subject: Re: Stop Bath


> Christian wrote:
>
> > Just a novice question about B&W film development:
> > What are your choices for stop baths?  I learned from
> > my dad who just uses tap water for 1 minute.
>
> Preferences vary - water bath stop works by massively
> diluting any residual developer and "real" stop bath works
> by being acidic and stopping the reaction "in its tracks"
> chemically. Stop bath is cheap & easy & effective, so IMHO
> it makes little sense not to use it.
>
> I'll leave the rest to others w/ greater experience.
>
> Bill
>
>         ---------------------------------------------------------
>         Bill D. Casselberry ; Photography on the Oregon Coast
>
>                                 http://www.orednet.org/~bcasselb
>                                 [EMAIL PROTECTED]
>         ---------------------------------------------------------
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