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Re: [Largeformat] Unicolor drum for neg development



From: "Lee Carmichael" <Click@flash.net>

Don:
    You can use the Unicolor drum.  It works fine.  I recommend that you pre
wash the film with water for 5 minutes (per Jobo's instructions).  This will
allow your development times in trays and the rotary times to be
consistently the same.  If you use enough chemistry for the tank I don't
think streaking will be an issue.  It has never been so for me.  I will pass
on the nude running jokes (streaks).  I am of the opinion that you will need
at least 300 ml of each chemistry for adequate development of black and
white film.  If you have the little rubber separators to keep the 4x5 film
separated on each bar you can do 4 sheets per run.  If you don't and you
don't make something that works, be advised that two sheets of 4x5 are all
that will work.  Otherwise the sheets will tend to overlap and not develop
properly and generally be ruined.  Good luck and let us know how it goes.
As usual,
Lee Carmichael
mailto:click@flash.net
-----Original Message-----
From: Don Wilkes <don.wilkes@gems9.gov.bc.ca>
To: Largeformat@onelist.com <Largeformat@onelist.com>
Date: February 21, 2000 04:59 PM
Subject: [Largeformat] Unicolor drum for neg development


>From: Don Wilkes <don.wilkes@gems9.gov.bc.ca>
>
>Greetings, all...
>
>I joined this list about a week or so ago, and posted a message about using
>a Unicolor (colour print)drum for 4x5 b&w neg development. Did this message
>actually make it to the list?
>
>Until I can rebuild my darkroom to be light-tight enough for neg
>development, I'm scambling for some options. I have a very small closet in
>which I can do film loading etc, but there's no way I could develop in
>there. Hence my thoughts about having a shot at using my old colour print
>drum. I anticipate some streaking issues, so was hoping someone else out
>there had some hints, or a whole other way of tacking this problem.
>Daylight tanks for sheet film aren't exactly common out there, it seems...
>
>Cheers,
>\don wilkes, Victoria, BC, Canada