From: Sandy King (sanking@clemson.edu)
Date: 07/22/01-01:39:52 AM Z
Carl,
>In any event, I am curious as to what print drum (or drums) you were
>using when >you encountered the pattern of streaks that corresponded
>to the interior >structure of the print drum? In fact, if you can
>recall the exact procedures >you used that lead to the streaks I
>would be very interested in knowing it.
Two points I would really like to know re: the streaking problem you
expereinced with ribbed drums is, 1) did you pre-soak the film (if
so, how and for how long), and 2) what kind of motor-base agitation
did they receive, and secondarily, did you give the tubes up and down
(vertical) agitation in addition to the fore and aft agitation they
received on the motor base.
Sandy
>>X-Time: <200107221316.f6MDGp314742>
>>Date: Sun, 22 Jul 2001 09:19:51 -0400
>>Subject: Re: Fwd: Re: bromide drag
>>From: "Carl Weese" <cweese@earthlink.net>
>>To: "Sam Wang (by way of Sandy King)" <stwang@CLEMSON.EDU>
>>X-Priority: 3
>>
>>Sandy,
>>
>>In fact my first thought when I encountered this was that the fault was in
>>the film, until I realized that the pattern of the streaks perfectly matched
>>the interior structure of the print drum.
>>
>>Expert drums have a slight but distinct (and carefully designed) texture as
>>well as small grooves, but even so I've found it a good idea to wet load
>>after soaking in a tray when using ABC+. I've never used plain smooth-sided
>>tubes.---Carl
>>--
>> web site with picture galleries
>> and workshop information at:
>>
>> http://home.earthlink.net/~cweese/
>>
>>----------
>>>From: Sam Wang <stwang@clemson.edu> (by way of Sandy King)
>> >To: cweese@earthlink.net, alt-photo-process-l@skyway.usask.ca
>>>Subject: Fwd: Re: bromide drag
>>>Date: Sat, Jul 21, 2001, 12:47 PM
>>>
>>
>>> Carl,
>>>
>>> I recall an earlier conversation with you regarding the *sneaky*
>>> streaking phenomenon. Very curious. I have not experienced this, but
>>> I don't do the heavy metal thing and it could result from a
>>> particular spike of light you get with pt/pd.
>>>
>>> Just out of curiosity, have you satisfied yourself that the problem
>>> you had with print drums and ABC+ was not a result of some internal
>>> defect in the film? I have seen some strange things on film
>>> emulsions that had nothing to do with my processing technique.
>>>
>>> Finally, I am really baffled that one can get decent results with
>>> staining developers with smooth-walled drums like the Expert Drums
>>> and from BTZS and home-made plastic tubes, which are also
>>> smooth-walled. Intuitive logic would suggest that drums with ribs
>>> that allow flow over the back of the film would perform much better
>>> than the smooth-walled tubes where the film remains virtually glued
>>> to the inside of the tube and little or no flow can take place.
>>>
>>> Sandy King
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