Highest fidelity format for scanned photo slides?

Thomas Stone

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Feb 27, 1998, 3:00:00 AM2/27/98

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Hello all,
I use clinical photo slides a lot for presentations and teaching
purposes (in the medical field). My goal is to scan a large number of
slides, and to keep them stored digitally, instead of going through the time
and expense of duplicating them photographically. I have several questions
about this:
1. What is the best file format to save high quality photographic images
that will be projected at some future date? I'm sort of new at this, but
just planned to scan them into PhotoShop. This would allow me to save as
.TIF, .BMP, .PSD, etc. files. Which is best? Is there a WWW site or FAQ
which discusses the nuances of different file formats?
2. Once I needed to project these, I was planning on cutting them from
PhotoShop, and pasting them into PowerPoint. I have a system at work which
will then send a PowerPoint presentation to an Agfa slide maker camera. I
then just get the film developed. Is there a better way to do it? PowerPoint
doesn't seem to like the large graphic files. It also will require some sort
of background, instead of just one large photo image. Is there another
program which will allow me to send just the photo directly to the Agfa?
Sorry for the verbosity. And thanks.
Tom

Julian Doncaster

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Feb 28, 1998, 3:00:00 AM2/28/98

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Thomas Stone <tws...@acpub.duke.edu> wrote in article
<6d7uar$r70$1...@news.duke.edu>...

> Hello all,
> I use clinical photo slides a lot for presentations and teaching
> purposes (in the medical field). My goal is to scan a large number of
> slides, and to keep them stored digitally, instead of going through the
time
> and expense of duplicating them photographically. I have several
questions
> about this:
> 1. What is the best file format to save high quality photographic images
> that will be projected at some future date? I'm sort of new at this, but
> just planned to scan them into PhotoShop. This would allow me to save as
> .TIF, .BMP, .PSD, etc. files. Which is best? Is there a WWW site or FAQ
> which discusses the nuances of different file formats?

Doubtless there is - but my pennorth for now:

I would think using JPEG without much compression. For the stuff I'm doing
(scanning negatives/slides for printing not projection) I use JPGs (simply:
good for photos).

My quality is not that high (don;t need it) - scanned files tend to be
1-5Mb in memory which compresses down to a 100-500k in JPG. At present I'm
also archiving the .BMP files I get from my scanner (Olympus ES-10) to a
compressed drive (BMPs compress, JPEGs don't).

A further thought - where are you going to store your images?

> 2. Once I needed to project these, I was planning on cutting them from
> PhotoShop, and pasting them into PowerPoint. I have a system at work
which

<snip>
What about a video projector. Depending on how big your files are, and how
big your budget is <g>, that may be a bit leading edge still...

Julian Doncaster

Juan de la Cruz Martinez

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Feb 28, 1998, 3:00:00 AM2/28/98

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Try the Photoshop web for their tech support , you also can use Microsoft
Power point

--
Juan DLC Martinez
Miami Grand Services
305-975-0637
xray...@sprintmail.com
Julian Doncaster wrote in message <01bd448b$27fbd3c0$0100007f@p002>...

>
>
>Thomas Stone <tws...@acpub.duke.edu> wrote in article
><6d7uar$r70$1...@news.duke.edu>..
.