From: Shannon Stoney (shannonstoney@earthlink.net)
Date: 07/17/02-05:11:06 PM Z
>
> You might try Xtol. This contains milder developing agents that you would
> probably not be sensitive to. Also Steve Anchell says HP4 and Xtol is the
> best B&W combo available in terms of tonal range.
Do you mean HP5 or FP4? I would like to try Xtol. Today I was looking at
the Kodak site and they didn't list it as a recommended developer for Tri X,
but that doesn't mean, I guess, that it doesn't work. When I run out of D76
maybe I'll try some.
I can tolerate D76 if I'm careful.
--shannon
>
> Bob Schramm
>
>>From: Shannon Stoney <shannonstoney@earthlink.net>
>>Reply-To: alt-photo-process-l@sask.usask.ca
>>To: alt-photo-process-l@sask.usask.ca
>>Subject: Re: HP5+ and LONG development times
>>Date: Wed, 17 Jul 2002 08:16:19 -0700
>>
>>Thanks for this info. I'm not quite ready to use pyro as I am very
>>sensitive to photographic chemicals and I'm afraid it's too toxic for me.
>>Maybe if I ever get a jobo processor and don't have to deal with splashing
>>developer too much...I will look at Sandy's article though for future
>>reference.
>>
>>Maybe I should switch back to Tri-X, my old favorite, although I would have
>>to buy it in boxes of 50.
>>
>>--shannon
>>
>>
>>
>>----------
>> >From: Clay Harmon <wcharmon@wt.net>
>> >To: alt-photo-process-l@sask.usask.ca
>> >Subject: Re: HP5+ and LONG development times
>> >Date: Wed, Jul 17, 2002, 4:55 AM
>> >
>>
>> > Shannon:
>> >
>> > Hp-5 is notorious for reaching so-called 'gamma infinity' quickly. That
>>is
>> > where at some point, additional development does not increase the
>>contrast,
>> > but only adds additional base+fog density (not desirable!) . You may
>>need to
>> > use a staining developer such as PMK, rollo pyro or Pyrocat-HD, which
>>will
>> > give a proportional (to silver density) UV blocking stain in the
>>highlights
>> > and behaves like additional density when printing UV sensitive
>>processes.
>> >
>> > I use HP-5 with pyrocat-HD all the time in my big cameras and it works
>>fine
>> > with a density range of about 1.3-1.4. The stain actually makes the
>> > effective density range more like 1.8-1.9. Pyrocat times for the density
>> > range you're looking for would be about 11-13 minutes at 75 degrees.
>>Check
>> > out the Sandy King article at www.unblinkingeye.com for all the info. It
>> > also is one of the cheapest developers around, and is pretty easy to
>>mix.
>> >
>> > Staining developers are about the only way to go with HP-5 for alt-photo
>> > density ranges, unless you only shoot really high contrast scenes. The
>> > pinhole may be making your efforts a little harder also because of
>>internal
>> > flare.
>> >
>> > Clay
>> >
>> > on 7/17/02 12:48 AM, Shannon Stoney at shannonstoney@earthlink.net
>>wrote:
>> >
>> >> I am shooting HP5+ in the 8x10 format in a pinhole camera for
>>cyanotypes. I
>> >> am having trouble getting the highlights dense enough. I am up to a 20
>> >> minute development time now, and still the highlights only have a
>>density of
>> >> 1.71. I would like a density range of about 1.6, starting at 0.35,
>>say, in
>> >> the shadows. (I have to shoot it at like 3200 to get the shadows this
>> >> thin!) Should I keep increasing the development times? Is it "bad" to
>>go
>> >> over 20 minutes? I process in straight D-76 in a homemade BTZS-style
>>tube,
>> >> at 68 degrees. I am thinking maybe I should make the temperature warmer
>> >> rather than making the times longer. But, then what will I do if I
>>ever
>> >> have to increase the development time further for a low-constrast
>>scene?
>> >> (Excuse the cross posting if you read
>> >> the pinhole and alt-process lists.)
>> >>
>> >> --shannon
>> >>
>> >
>> >
>> >
>
>
> Check out my web page at:
>
> http://www.SchrammStudio.com
>
> also look at:
>
> http://www.wlsc.wvnet.edu/www/pubrel/photo.html
>
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