Rick Newton wrote:

"So with my trusty laptop and a video display device,  I should be able
to
put on a decent show.  I guess we could use one of those computer video
to
T.V. converters,"

If the point is to use a projection device (such as insite etc.) from a
PC for a multimedia presentation, I wouldn't recommend it for any
serious display of photography.  These units are designed for, and do an
adequate job for, business graphics (e.g. Powerpoint) but suffer from
poor color rendition, poor contrast, and low resolution.  Typically the
best ones are 800x600 true resolution and anything higher is mapped
(rather crudely I might add) into the 800x600.  I don't know how many
bits of luminance you get per channel but I'd be surprised if you get
more than 8.  My guess is that combining all of the artifacts of the
projector with the dynamics limitations of even the best scanners
available to consumers (like my Polaroid Sprint Scan +) will not yield a
satisfactory viewing experience for a "serious photographer of
rail-related subjects."

Seth Neumann
Senior Manager, Core and Alliances
Call Center Business Management
Nortel
Enterprise Networks
2305 Mission College Bl.
Santa Clara, CA 95052-8173

408-565-2418 

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