Path: utzoo!utgpu!watmath!watserv1!watcgl!imax!dave
From: dave@imax.com (Dave Martindale)
Newsgroups: comp.graphics
Subject: Re: digitizing images (was Re: Scientific Visualization again)
Message-ID: <1989Nov28.214347.20235@imax.com>
Date: 28 Nov 89 21:43:47 GMT
References: <11726@phoenix.Princeton.EDU> <1989Nov25.142552.1702@hellgate.utah.edu> <3399@jhunix.HCF.JHU.EDU> <5646@eos.UUCP> <1989Nov27.024857.9480@ux1.cso.uiuc.edu> <JIM.89Nov27134751@baroque.Stanford.EDU>
Reply-To: dave@imax.com (Dave Martindale)
Organization: Imax Systems Corporation, Oakville Ontario
Lines: 16

Both Nikon and Eikonix sell packaged scanners specifically designed for
digitizing 35mm slides.  The Nikon does about 6000x4000 pixels, while
the Eikonix is 4000x2666 roughly.  I know the Nikon is 8 bits/component
(24 bits/pixel) and the Eikonix is at least 8 too.  The Eikonix uses a
linear CCD sensor array, moving either the slide or the sensor array
mechanically to get scanning in the other direction.  The Nikon moves
the slide, although I've been told that Nikon has another model that
holds the slide still and moves the sensor instead.

If you need better intensity resolution than 8 bits, Eikonix also makes
a 12-bit/component scanner with 4096x4096 pixels called the 1412.  This
one isn't specifically designed for slides, but can be used for that.

I believe the Nikon box is around $10K; don't know about the Eikonix.
The results with either won't be as good as a scanning
microdensitometer, but they're a lot cheaper.


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