[filmscanners] Re: Nikon LS4000 Depth of field

["dickbo" <dickbo@btopenworld.com>]

...and in contact with the air as well. Lets get the whole story up and
running shall we.

You show me a flat film and I will show you a pig flying.
If a film is not flat then there will be some kind of distortion of it's
geometry in which case I'll take glass every time.

I have several carosel's here which contain glass mounted Kodachromes at
least 30 years old and nothing has happened yet. The worst that cane be said
is that every now and again it is necessary to re seat them in order to
remove newton rings.
----- Original Message -----
From: "Arthur Entlich" <artistic-1@shaw.ca>
To: <dickbo@btopenworld.com>
Sent: Thursday, April 25, 2002 1:37 PM
Subject: [filmscanners] Re: Nikon LS4000 Depth of field




dickbo wrote:

> Just mount in glass and the problem ceases to exist, not only that your
> originals are better protected.
>


Most, if not all, photo archivists will tell you today that glass
mounting of slides is considered to accelerate aging due to chemical
off-gassing getting trapped between the glass and slide.  Also, the risk
of fungal growth or other moisture related problems are higher with
glass mounted slides.

You are correct that they are better protected from handling errors.

Art


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