[filmscanners] RE: a newbie questions

["Jack Phipps" <JPhipps@asf.com>]

Hello Enrique!
1) You may want to check out scanners in the class of the Kodak 3570 LED or
Durst Sigma scanners. It would take nearly 400 hours of scanning time to use
the Durst for this project and that doesn't include set-up time or the time
to load the film!

2) You can specify whether it is a negative or positive at scan time to get
a positve scan, or you can invert the digital image using an image editor.

3) The resolution depends on a lot of factors. One approach would be to make
a low resolution (768 by 512, 8 bit jpeg for 35 mm, less than 1 MB) scan to
catalogue all of your images and use the negative to print an image or
rescan the image for final use. Another approach would be to scan all images
at the highest resolution achievable (minimum of 2400 by 1800, 12+ bit
lossless format for 35 mm, 20-100 mb) so they would be ready use. This
method would provide for a "back-up" for your film. It would also require a
lot more storage and time. Personally, I wouldn't trust any scanned image as
an archive, in other words, a scan that provides the resolution and data
capture complete enough that you could discard your film.

Good luck with your project! I'm glad it is you and not me.

Jack Phipps
Applied Science Fiction


-----Original Message-----
From: Enrique Londaits [mailto:solucionesdigitales@ciudad.com.ar]
Sent: Monday, April 01, 2002 7:21 AM
To: Jack Phipps
Subject: [filmscanners] a newbie questions


Hi all

I just subscribed to the list and have a couple of questions that I
badly need the answers to. (pardon if they seem very basic)
I'm facing a huge archival project for a local opera theater in my
country, and besides backing up the audio and video they got (my
field of expertise), they've asked me if I could take charge of
digitizing their photo archive (about 400.000 units, between 35 mm
and 6x6 color negatives, 35 mm slides, and some prints)
I'm most concerned with the negatives and slides (they're like 80% of the
job)

1 - What scanner would scan 35 mm *and* 6x6 negatives? I don't know
if it's called the same abroad, but we call
       6x6 (centimeters)  the size of pictures a Hasselblad or a Rollei
takes.

2 - I've heard of some scanners that convert negatives to positives
at scanning time. Is that so? Is it convenient?

3 - What would be the best resolution for scanning negatives, and how
much MB would each negative be?

Thanks in advance, and best regards.



Enrique Londaits
Soluciones Digitales
solucionesdigitales@ciudad.com.ar
Buenos Aires - Argentina

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