Re: tri-x and bpf 200


Steve Shapiro (sgshiya@redshift.com)
Wed, 27 Jan 1999 15:39:10 -0800


Subject: Re: tri-x and bpf 200

>"I" (Tom Ferguson) wrote (poorly):
>>If I need an expansion, I find much bette results increasing
>>the dilution of the developer and the time, rather than just
>>increasing time. For a plus one I would use 50ml per liter of
>>developer (instead of 30) and 12 minutes (instead of 10).
>
>At 8:32 AM -0500 1/27/99, Carl Weese wrote:
>>Tom,
>>
>>Just to confirm something in your post, I too have found that when
>>trying to expand HP5+ contrast range for Pt printing using a
>>conventional developer like HC110, increasing the strength of the
>>developer (decreasing the dilution of the concentrate) is more effective
>>than lengthening the time in standard dilution.---Carl
>
>Yep.... You caught me ;-( My number are correct (for me), my language
>was terrible. If I want a plus (or expanded) development I use (as does
>Carl) a STRONGER developer NOT "increasing the dilution". And to think my
>Mother was a high school English teacher!!
>
>Tom
>
>
>tomf2468@pipeline.com
>http://www.thefstop.com/tf.html
>
>

Well, what's interesting is that Edward Weston did make negatives with
greater range using a dilluted developer. He used the dilluted version,
longer and warmer; and almost always did a borax bath for imspection, water
bath and continued development by inspection for 30, forty even 45 minutes.
An hour and a half, sometimes. His prints looked like sandscrit in
immaculate detail, sometimes.

Steve Shapiro, Carmel



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