Re: HIE processing, added density, turbulence and more..

["Des Crawley" <d.crawley@xxxxxxxxxx>]

I have tried  the agitation techniques cited  by Frank and by  Cor  in
recent times and manage to get the streaks based on sprocket holes...I have
reached a stage where I am about to give up...the film  now  a
monster....after using it for 30 years without any problems whatsoever the
last three years have been disastrous.... 

help !

Des
> From: Frank Schiffel <SchifF@xxxxxxxxxxxxxxxxxxxxxxx>
> To: infrared@xxxxx
> Subject: Re: HIE processing, added density, turbulence and more..
> Date: Thursday, December 17, 1998 2:24
> 
> invert it 2-3 times then tap it  on a hard surface to remove bubbles.
sprocket patterns are an indicator of inadequate agitation. also check to
make sure your developer is thoroughly mixed, especially if you're doing
say D76 at 1:1 or 1:3 from a stock solution.
> 
> >>> Cor Breukel <cor@xxxxxxxxxxxxxxxxxxxxxxxxxxx> 12/16/98 7:46:48 AM >>>
> An recurring problem I encounter (next to "emulsion artefacts"), is added
> density around the sprocket holes (black on the negative, white in
print).
> Presumably due to the turbulence around these holes during development.
> Changing my manual rotation method (only a gentil 90 deg tilt, with a
> slight rotation every 30 sec), helped quite a bit, but didn't completly
> solve it. Lately I aquired a second hand JOBO processor, a treat! So I
> decided to use it also for HIE. This time no "sprocet-hole pattern", but
a
> slight added density all over the whole film strip, of about 1mm
> thickness, bottom and top of the (horizontal) frame. Still no solution,
> still turbulence I assume, and with some darkroom effort removable. I
> could lower the rotation speed next time.
> 
> Any thougths, experiences, feedback etc on this ?
> 
> Thanks,
> 
> Cor Breukel
> 
> http://ruly70.medfac.leidenuniv.nl/~cor/cor.html 
> "The Infrared Gallery"
> http://ruly70.medfac.leidenuniv.nl/~cor/ir-gallery.html 
> 
> 
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