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Re: Re plus density/pinholes
- From: GMA <george@xxxxxxxxxxxxx>
- Subject: Re: Re plus density/pinholes
- Date: Mon, 16 Jun 1997 10:40:34 -0700
Jason;
Your analysis is consistent with what I've seen on 4x5 HIE. I have
heard other photographers put the blame on Kodak. Some mfg problem. In
my experience, not every box of HIE will have the pinholes. Just most
of 'em. Definitely NOT dust spots. And definitely a problem that Kodak
should solve.
george (not the same george.)
Jason Revell wrote:
>
> I can I am afraid say that this is not the case. I have been using the
> HSI for 5 years now both for both work and private use. These 'pinholes'
> do look very similar to dust but are not. (I have only had dust spots on a
> few
> of the 100 or so sheets I have processed this year) that's tempting fate :-)
>
> I actually looked at them under a microscope. Dust spots tend to be very
> sharp as the dust is actually sitting on the film when the picture is taken
> and
> also of varying shapes. These, however were always circular, totally clear
> in the middle but with defused edging. The only way I can describe it
> better
> is that it was similar to the way mold looks when it grows, Strong in the
> center
> and then weaker as it spreads out. I have actually wondered since if it
> might
> of been a mold growth on the film (but this is very unlikely) or perhaps a
> coating error on the that grew weaker with time resulting in the loss of the
> actual emulsion.
>
> I only mention this as if people think they are getting dust spots, it is my
> opinion that there might be other reasons.
>
> jason.revell@xxxxxxxxx
> ******************************************************
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End of Infrared-Digest V0 #65
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