Re: [APML]: Tech Pan Problem

[ipper@juno.com (C B IPPER)]

On Sat, 21 Sep 96 00:08:22 EDT joneil@obis.empathy.on.ca (Joseph O'Neil)
writes:
>The Astroid-Photography Mailing List
>------------------------------------
>
>aaa@aaa.orgy (Chuck Vaughn) writes:
>> 
>> All three of us use no stop bath at all but we do use the same 
>fixer. Bob
>> hypers his own 4x5 TP and develops in D76 only.
>
>      After reading that, my suggestion now is sure switch not just 
>types 
>but brands of fixer, and use one shot only.
>
>  how old is your fixer?  People know developer can go bad after a 
>while, 
>bu fixer mixed in liquid form kept for too long can go "funny" too.
>
>> 
>> One more thing...and maybe I'll make this a separate post. Why are 
>highly
>> sky fogged TP negatives more grainy than lightly sky fogged ones? 
>This
>> is another thing that makes no sense to me at all.
>
>  how do you get grainy tech pan?  I thought the only way to make that 
>
>stuff grainy was with 00 buck shot fom a 12 gauge at 10 foot range?
>
>  Seriously - that sounds odd.  Wonder what would be causing that?  
>For 
>ay other film, the denser a negative, often the more grainy that part 
>of 
>the negative because th larger silve crystals are darkening.  Sort of 
>like pushing a film one or two stops - it is the lrger silver crystals 
>
>that are grainy before the smaller, less light sensitive ones.  But 
>tech 
>pan - that stuff is - well it's postitively inhuman in it'sability to 
>not 
>show grain.  Weird
>joe
>
>
Hi Joe
Saturday night I was experiencing the same problem with hypered 
4x5 TP too.   That is some small clusters of half size 00 buck shot.   
This film was stored properly  and unopened  for just under two 
years, purchased in NY..   All negatives, (5) revealed this problem.    
This batch of film maybe the problem or D-19?  No grain as usual....
Carl Faulkner