Re: Pinholes - after the fact

["Thomas H. Hogan" <flzhgn@xxxxxxxxxxxxx>]

There was a discussion awhile back about pinholes and 
chlorine in the water.  Shortly after I read it I got
my first pinholes with HIE film and it was just after 
I moved to a new location which had a different water
supply.   I suspected that there was dissolved chlorine
in the water that I used to mix the chemicals and to 
rinse the film.

Others on this list will know more about this.

Hank

Colin McKie wrote:
> 
> Elton N. Kaufmann wrote:
> >
> > I just processed a roll of Konica 750 shot at EI 6 NTTF with a #29
> > filter
> > (Rodinal 1:50 [distilled water] 68 deg F, 6.5 minutes, 5 sec agitation
> > every 30 sec) and the negs look basically fine.  There is one pinhole
> > however.
> >
> > Then, I processed a roll of HIE shot at EI50 NTTF with a #29 filter
> > (D76
> > straight [tap water], 68 deg F, 10 minutes, 2 inversions every 30
> > seconds)
> > and the negs again look fine.  But nearly every one has a pinhole and
> > some
> > have two.
> > snip
> 
> We've just been having a spate of HIE pinholes, and seriously wonder if
> it has anything to do with processing at all. Using Rodinal (1+50) and
> half-strength stop bath with careful agitation, we got our worst crop
> ever - up to 4 on some frames.
> Incidentally, Rodinal can give plenty of contrast at 1+25, and the
> grain  is crisp and clear - exactly why we use it!
> 
> Conventional films given exactly the same treatment show no flaws at
> all.
> 
> Maybe the Great Yellow God is getting sloppy?
> 
> Our current solution is the very non-purist one of removing the black
> spots with the clone tool in Photoshop! Scan a print, retouch on screen,
> print a contact neg on an inkjet, reprint. Or, print out a direct
> positive on watercolour paper. Still problems of permanency here though.
> 
> Better ideas anyone?
> 
> Colin & Linda McKie
> 
> --
> Mainland Mono
> Monochrome & Infra-Red
> Rangiora, New Zealand
> 
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