Re: [OM] IMGS: Speckles

[Michael R. Collins]

You may want to take a look at this article for a few more details - it 
claims Fuji lays the blame on the film base, not the surface:
Fuji 'Pepper Grain' - The Mystery Resolved
<https://luminous-landscape.com/fuji-pepper-grain-the-mystery-resolved/>

Michael

On 2017-12-10 5:30 PM, Tina Manley wrote:
> Well, that's something new to me!  I've never heard of pepper grain.  I'm
> glad I don't have many like that so I'm not worrying about it right now,
> but I may try the digital camera scan route on those.
>
> Thanks, Ken.
>
> Tina
>
> On Sun, Dec 10, 2017 at 5:04 PM, Ken Norton <ken@xxxxxxxxxxx> wrote:
>
> > That looks like "pepper grain". It was more common with Provia than
> > Velvia, but would occur in both. From what I've been able to
> > determine, it's caused by surface refraction in the surface of the
> > film. Fujifilm essentially "frosted" the surface of Velvia and Provia
> > to help the highlights. With a diffuse light source, there are no
> > artifacts. With a pinpoint or columnated light source, the light would
> > refract away from the direction of the scanner's sensor resulting in
> > black dots.
> >
> > AG Schnozz
> >
> > On Sun, Dec 10, 2017 at 11:37 AM, Tina Manley <tmanley@xxxxxxxxx> wrote:
> > > PESO:
> > >
> > > I'm still scanning slides of Italy.  Most of the film has been Provia
> > which
> > > seems to scan fine, but I've run into a series where I used Velvia.  That
> > > shows lots of speckles in the film.  I used Vuescan's infrared noise
> > > removal when I scanned it and I've tried both Neat Image and Define in
> > > Photoshop.  Nothing touches these speckles.  Here is an example:
> > >
> > > http://www.pbase.com/image/166696968
> > >
> > > Enlarged detail from the top left corner:
> > >
> > > http://www.pbase.com/tinamanley/image/166696969
> > >
> > > Any suggestions on how to get rid of speckles?
> > >
> > > Tina
> > >
> > > --
> > > Tina Manley
> > > www.tinamanley.com
> > > tina-manley.artistwebsites.com
> > > http://www.alamy.com/stock-photography/3B49552F-90A0-
> > 4D0A-A11D-2175C937AA91/Tina+Manley.html
> > > --
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> > --
> > Ken Norton
> > ken@xxxxxxxxxxx
> > http://www.zone-10.com
> > --
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