Re: Re[2]: Konica Reticulation

[Goff Photo <jdgoff@xxxxxxxx>]

At 12:02 PM 5/21/97 EST, you wrote:
>I wonder if someone could tell me what reticulation is?
>
>regards
>
>Peter B
>(to differentiate from another Peter on the list)
>
>Retic. is the result of the migration of silver particles through ruptured
gelatin cells into clumps that appear as 'graininess'. It is caused,
usually, by thermal shock. If all solutions are not held to within a few
degrees, including the wash, then the gelatin cell walls may rupture. (As
you may know, the light sensitive silver halide particles are suspended in
gelatin.) It is subsequent to development, when the light struck particles
have been reduced to silver, that the clumping may occur. I have heard that
extended immersion in liquids, particulary extended wash time, may
contrubute to the possibility of retic. Hope this has helped. Good
Luck.........James 
>
>______________________________ Reply Separator
_________________________________
>Subject: Re: Konica Reticulation
>Author:  infrared@xxxxx at INTERNET
>Date:    5/19/97 11:11 PM
>
>
>Haven't shot any lately, but when I lived in Florida, I used to
>have to process Konica IR750 (120 size) at temps as high as 32C (90F). 
>I never got any reticulation at all, and aleways, the emulsion side
>of the negative seemed to be very shiny and with no physical
>graininess.  Are you using a stop bath, possibly with a developer containing 
>carbonate for an alkali?  This could cause reticulation.  The film has been 
>so good for me that I can't imagine it ever reticulationg unless abused, as 
>above.
>
>
>Edward M. Lukacs, LRPS
>Washington, DC, USA     
>
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