Re: Developing sheet film in open-ended PVC tubes

Fine, but a nitrogen burst system is far from stand development. The
purpose of the system is to send enough bubbles through to provide
intermittent movement of development byproducts.

Sandy

>I never saw Gagliani's negatives, but did see his prints. If the
>negs were unevenly developed, he sure as hell beat that in the
>printing. I think he may have used a nitrogen burst system, but I
>don't know how often it bubbled. Unfortunately, a Google search
>reveals nothing of his technique.
>
>>Bill,
>>
>>I have done stand development, and a lot of it.
>>
>>Unfortunately there is no way to get completely even development
>>with stand development.
>>
>>For some recent discussions on forms of minimal and stand
>>development to to http://www.michaelandpaula.com/mp/index_skip.html
>>and look at some of the topics under film development on stand and
>>minimal agitation.
>>
>>Sandy
>>
>>
>>>Sandy,
>>>
>>>IF you want really minimal agitation, why not consider stand
>>>development. You need tanks for the film, but many report it's a
>>>great technique. Oliver Gagliani swore by it. I used to develop
>>>4x5's in hangers and tanks and people always said they got
>>>agitation marks and I got none. Paul Caponigro showed me a very
>>>gentle technique of lifting the hangers out for very minimal
>>>agitation. Worked great. Of course, all these techniques require
>>>more hardware than a simple tube in a tray.
>>>
>>>Bill
>>>
>>>Bill
>>>
>>>>Bill,
>>>>
>>>>>
>>>>>BTW, I do all my film work (and print work with Pt/Pd) in Jobo
>>>>>drums. While I have a Jobo machine one can use (most of) their
>>>>>drums on a plain old Beseler rolling agitator. I don't see the
>>>>>advantage of open tubes in trays (in the dark) if one can easily
>>>>>use tubes in the light unless there's something I'm missing.
>>>>
>>>>
>>>>Yep, that is exactly what I though when I read that article years
>>>>ago. Why bother with open-ended tubes when you can just put caps
>>>>on the tubes and have the advantage of daylight processing? But
>>>>time passes and we learn. The advantage to the open ended tubes
>>>>is that you can cover them with developer (they sink in
>>>>developing solution) and develop with minimal agitation
>>>>procedures.
>>>>
>>>>It is also an extremely simple solution for those who do not get
>>>>even development with tray development and/or who have a
>>>>proclivity for scratching or gouging their negatives with shuffle
>>>>development.
>>>>
>>>>
>>>>Sandy
>>>>
>>>>>
>>>>>
>>>>>
>>>>>>Oh, I think I know the article you are referring to. I have also seen it
>>>>>>very long time ago but can't remember either. I think it might be in
>>>>>>Darkroom Technique (or the name before that), but I thought for
>>>>>>Bibliography, you only need to cite the original idea rather than the
>>>>>>variations afterward.
>>>>>>
>>>>>>If I come across it I will let you know.
>>>>>>
>>>>>>Dave S
>>>>>>
>>>>>>----- Original Message -----
>>>>>>From: "Sandy King" <sanking@clemson.edu>
>>>>>>To: <alt-photo-process-l@sask.usask.ca>
>>>>>>Sent: Wednesday, March 31, 2004 12:00 PM
>>>>>>Subject: Re: Developing sheet film in open-ended PVC tubes
>>>>>>
>>>>>>> Dave,
>>>>>>>
>>>>>>> It was not Phil Davis. Phil introduced the BTZS type tubes in his
>>>>>>> book Beyond the Zone System but in this type of development the tubes
>>>>>>> are capped on each end and and development is carried out in a water
>>>>>>> bath with the lights on.
>>>>>>>
>>>>>>> In the article to which I refer the author recommends placing the
>>>>>>> film in open-ended PVC tubes and then developing the films in a tray
>>>>>>> containing the developer, with the lights off of course.
>>>>>>>
>>>>>>> Sandy
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> >Sandy,
>>>>>>> >
>>>>>>> >If I remember correctly, it was Phil Davis. The procedure should be
>>>>>>> >described in one of his book "Beyond The Zone System." While
>>>>>>>this is from
>>>>>>> >memory, I think it is correct since the tubes are also known as BTZS
>>>>>>> >(abbreviation from the title of the book) tubes.
>>>>>>> >
>>>>>>> >Dave S
>>>>>>> >
>>>>>>> >----- Original Message -----
>>>>>>> >From: "Sandy King" <sanking@clemson.edu>
>>>>>>> >To: <alt-photo-process-l@sask.usask.ca>
>>>>>>> >Sent: Wednesday, March 31, 2004 11:26 AM
>>>>>>> >Subject: Developing sheet film in open-ended PVC tubes
>>>>>>> >
>>>>>>> >
>>>>>>> >> A number of years ago someone wrote an article that was
>>>>>>>published in
>>>>>>> >> one of the national magazines that described how to develop sheet
>>>>>>> >> film in open-ended PVC tubes in trays. This procedure offers some
>>>>>>> >> advantages over normal tray development in that it gives
>>>>>>>1) very even
>>>>>>> >> development with no edge hot spots, and 2) minimizes the
>>>>>>>possibility
>>>>>>> >> of scratching that many experience in shuffle agitation.
>>>>>>> >>
>>>>>>> >> I am describing this procedure in a current writing
>>>>>>>project and would
>>>>>>> >> like to give credit to the person who originally suggested the
>>>>>>> >> procedure but I am unable to locate it. Can anyone on the list
>>>>>>> >> provide any details to help me locate the article.
>>>>>>> >>
>>>>>>> >> Sandy
>>>>>>> >>
>>>>>>> >>
Received on Wed Mar 31 17:20:31 2004