Re: Reading Disks
By Terry Smythe
> Wayne Stahnke <LiveP@aol.com> sez:
>
> Subject: Scanning Music Box Disks
> I suggest that you go to the trouble
> of making a high-quality photograph of the disk
Within the world of records management, it is common practice to use precisely the kind of camera that Wayne speaks of, loaded with very fine grain hi-contrast film.
I understand that the U.S. Census system is still using a system where questionnaire documents are filmed with such a process, then the data on film is scanned using some form of Optical Mark Reading. This is old technology, but perhaps there may be a possibility for technology transfer.
I've used the microfilm camera route before to photograph obscure fallboard/soundboard decals prior to stripping, make a giant print for artwork touch-up, then re-photograph back down to same size for a silk-screened replica of the decal. The flat bed cameras are quite suitable for what you have in mind.
A neat offshoot of this idea is that most every city has a number of microfilm service bureaus nearby where disks could be photographed locally. I have a 28" Kalliope, Model 200 (saucer bells), with only 10 disks, all gorgeous musical arrangements. I would be delighted to take them all down to my local micrographics service bureau and have them photographed for such a project.
I'm rather intrigued by the thought of photographing disks, or for that matter, scanning such disks. Just a thought, but it really would not matter to the process whether the disk is scanned face up or reversed. I would think that the placement of the fibre optic strands would dictate from which side to read.
Something to think about.
Regards,
Terry
Terry Smythe (204) 832-3982 (voice/fax)
55 Rowand Avenue smythe@mts.net
Winnipeg, MB, Canada R3J 2n6 smythe@freenet.mb.ca
Home page: http://www.mts.net/~smythe |
(Message sent Mon 5 Aug 1996, 14:30:49 GMT, from time zone GMT-0500.) |
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