[filmscanners] Re: The"Pepper Grain" problem.

["Roger Smith" <rsmith@unb.ca>]

At 11:35 AM -0400 4/15/02, Martin Greene wrote:
>Regarding the pepper grain effect which has been driving me wild for some
>time, and to which I have attributed various causes, there is an article on
>it in The Luminous Landscape by Nick Rains.  Using an Imcacon Flextight, he
>noted the spots.  He also noted that Digital Ice removes it.  He had scanned
>Fuji Provia 100F, contacted Fuji about the problem and after some time Fuji
>informed him that the problem lay in the film base.  So that is it.  I only
>use Fuji film.  The "Pepper Grain" also shows up in Velvia and Astia.  Fuji
>assured him that they would rectify the problem.
>
>  http://www.luminous-landscape.com/fuji-pepper.htm

Hi Martin,
        If you scroll down to the end of the Nick Rains article you
will see my follow-up, including photomicrograph, in which I
attribute the 'pepper grain' to microscopic bubbles in the
scratch-resistant layer which protects the emulsion. I also have seen
the 'pepper grain' effect on every brand of film I have examined, not
just Fuji, and in both slides and negatives.

Regards,
Roger Smith

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