Thin negs

[David J Castelli <dcastell@xxxxxxxxxxxxxx>]

> Only one minor problem persists in my efforts--thin
> negatives.  I haven't pinned the cause down yet.  It
> might be underdevelopment or underexposure.
>
> I'm developing in Rodinal though I've used Dektol in the
> past.  I usually shoot Kodak Infrared rated at ISO 200
> through a Wratten 25 red filter.  Of couse, I bracket at
> least one stop over and under.

>>Based on my experience and the exposures that you list I think it is
>>under development.  What time/temp/dilution are you using with
>>Rodinal or Dektol?

Sandor,

Sorry, I meant to say Rodinal or *D-76*.  In Rodinal, I've used 1:25
at 75F for 5 minutes.  This was a recommendation by a good shooter from within
a photo club.  I see that the Infrared FAQ recommends 1:50 for 10 min
(at 68F, I presume).

I don't remember the D-76 times, but I used Kodak's recommended time. 

My most recent thin negs came using Rodinal.  However, I was pushing it past
its expiration date (a practice that was considered fine back when Rodinal was
sold in glass bottles with good stoppers, not today's plastic ones).  That
might 
be my present problem.  I'm going to have to narow down the variables.


Does anyone else on this list "push the limit" on developers or am I the only
one 
with this bad habit?


Dave



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