Archived posting to the Leica Users Group, 1997/07/09

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Subject: Re: Video or Digital Images of Slides
From: Michael Bell <MBell@mail.utexas.edu>
Date: Wed, 9 Jul 1997 08:50:00 +0100

Alan Bearden <healey@uclink.berkeley.edu> asks:

>Has anyone any experience in copying 35mm transparencies on to video tape,
>either by using a commercial service (how much does it cost?) or by
>purchasing >the necessary equipment?  Any advice on such equipment?

At work we have a thing called a Navitar Videomate.  It looks very similar
to a Kodak carousel slide projector except there is no lens on it.  There
are S-video and BNC* video output connections as well as 3 separate BNC
outputs for RGB connection.  It has two extremely useful features.  An iris
control with a very wide range allows you to correct exposure and also
gives you some creative control.  Unfortunately, the iris will not go all
the way to black.  A zoom control gives you limited cropping ability.  In
the very short space between slides, the video screen shows black.

The image quality is good but not great.  I think the main limitation is
the NTSC (Never The Same Color) standard.  TV monitors are not generally
capable of the contrast range of slides very well.  Taking some time to
tweak your TV controls helps considerably.

The Navitar is not cheap, selling for around $3000.  And as I understand
it, it is at the bottom of the price range for such devices.

- -----

*BNC connectors are a pro lock-on type of connector and are much better
than the standard RCA connectors.


Michael Bell
MBell@mail.utexas.edu