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 11:03:49 2004