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cause and cure - black spots!


  • From: "Paul R. Goulden" <P.R.Goulden@xxxxxxxxx>
  • Subject: cause and cure - black spots!
  • Date: Fri, 29 Nov 1996 11:38:18 +0000 (GMT)

Dear all,

Can someone tell what causes the black spots where highlights occur on 
Kodak HIE negatives ? Is it the fact that the film base is clear and when 
you get a highlight, the point of light 'spreads' on the film? 

How can this be avoided - surely if you shorten the exposure to limit the 
highlight, shadow detail will be lost. Would it be the case that the film 
would have to be given N-1 or N-2 development to hold back the highlights 
on the negative ? Or is the damage already done when you expose the film ?

I have only put one roll through as negatives - processed in Ilford LC29 
for 6mins at 20C. I usually process the film as slides - so i'm new to 
this game. Any hints you can pass on would be great.

Hope you have a good weekend,

Paul

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Topic No. 5