[filmscanners] RE: SS120 - getting dust out

["Frank Paris" <frankparis@comcast.net>]

I have an SS4000 and I periodically get moderate to terrible spotting on
my slides. These are sharp small spots, indicating they are on the film.
If it was dirt in my machine I wouldn't get one spotless batch and the
next time get filth. Yet I can rarely see dirt on the slides even with a
10X loupe. Slides may look clean under the loop and still be loaded with
dirt.

Frank Paris
frankparis@comcast.net

> -----Original Message-----
> From: filmscanners_owner@halftone.co.uk
> [mailto:filmscanners_owner@halftone.co.uk] On Behalf Of Arthur Entlich
> Sent: Tuesday, March 04, 2003 8:38 PM
> To: frankparis@comcast.net
> Subject: [filmscanners] Re: SS120 - getting dust out
>
>
> In spite of the the Polaroids having a good depth of field,
> there is nothing within the focal path that is in focus other
> than the film plane, when you have the film plane in focus, that is.
>
> Dirt in the system, such as on the lens or the mirror if they
> show up at all, show up as out of focus spots (darkening) or
> light scattering (halos, smears between light and dark areas, etc).
>
> So, the only place that dust shows up in focus, is on the
> film surfaces, or if you are using a glass negative holder,
> the holder surfaces.
>
> Now, it is possible there is dust floating around in your
> scanner and landing on the film during the scans (not that
> likely), and if that were the case, then perhaps some low
> pressure (clean, dry air) might blow it out.
>
> I would also recommend you download and learn to use
> Polaroid's free dust and scratch filter (now available for
> both PC and Mac) from their website.
>
> Art

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