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Re: filmscanners: newton rings



Thanks, where is this powder available.


Bill


----- Original Message -----
From: "Arthur Entlich" <artistic@ampsc.com>
To: <filmscanners@halftone.co.uk>
Sent: Friday, October 19, 2001 1:00 PM
Subject: Re: filmscanners: newton rings


> To avoid Newton Rings you have to avoid contact between the surfaces.
>
> One way would be to increase the space between the film and the glass.
> Of course, this is a bit of a catch 22 since the reason for using a
> glass carrier is usually to flatten the film between the glass layers.
>
> There is a powder made for this purpose which is applied very sparingly
> which serves as a "buffer" between the glass and the film surface.
>
> Lastly, there is anti-newton coated or etched glass.
>
> Those are the ones I know of.
>
>
> Art
>
> Bill Grimwood wrote:
>
> > I am getting Newton rings in my scanning with my Minolta Dimage scanner.
Of
> > course this is with the glass negative carrier for medium format.  I
have
> > heard of a way to prevent this but have forgotten how.  Can anyone help?
> >
> >
> > Thanks
> >
> > Bill Grimwood
> >
> > .
> >
> >
>
>
>
>




 




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