Thank you to all who responded to my query. Your questions and
responses have in turn challenged my thinking about the original
problem. While the functional master will need to be quite large to
meet many potential uses, I wonder if we need an archival master of a
surrogate of a surrogate of a
) 998-5689
Fax / Télécopie : (613) 990-3655
Website: www.aviation.technomuses.ca
Email: amacdon...@technomuses.ca
Amy Stidwill astidw...@hillwoodmuseum.org
10/13/2004 09:18 AM
Please respond to mcn-l
To:mcn-l@mcn.edu
cc:
Subject:Re: Standards for Digital Masters
The bigger the file size (70MB - 250MB is not uncommon) the better. In
other words, the bigger the file the more information on the object is
captured. Also, focus on one master format, i.e. TIFF is a very common
format in this regard (do not compress the files) and if you apply color
As I said, surrogates, not masters. Masters are un-cropped, first
acquired digital images. Any corrections to the original digital image
makes it a surrogate.
Color corrections are necessary once you start making reproductions of
the masters for print or online display. Those copies of the
I second this. Don't get in the habit of keeping layered Tiffs around
beyond the image processing / pre press stage.
Jeff Evans
Digital Imaging Specialist
Princeton University Art Museum
609.258.8579
On Oct 13, 2004, at 11:56 AM, Roger Howard wrote:
The bigger the file size (70MB - 250MB
At 23:04 12/10/2004, Tom Arnautovic wrote:
Get the highest possible digital capture and go from there. If your
scanner maxes out @4000DPI, why bother scanning it at a lower
resolution, or targeting a specific file size?
Simple. Memory and budgetary limitations.
Amalyah Keshet
Head of
You might also want to make sure that your camera / scanner can
deliver 4000 DPI; otherwise your making a lot of pixels. There are some
benchmarking techniques available to ensure your device can produce the
resolution you expect.
-Peter
On Oct 13, 2004, at 2:03 PM, amalyah keshet wrote:
Budgetary concerns were never mentioned in the original inquiry of the
poster.
akes...@netvision.net.il 10/13/04 11:03AM
At 23:04 12/10/2004, Tom Arnautovic wrote:
Get the highest possible digital capture and go from there. If your
scanner maxes out @4000DPI, why bother scanning it at a lower
I am in the process of reviewing and updating our standards for master
digital files as we switch to a new collections management system. We
have not entered the realm of direct digital capture and are scanning
primarily from 4 x 5 transparencies. If this sounds like your museum,
please let me
Amy -
I am neck deep in a massive digitization project - so excuse the quick
response.
From 4x5 Transp.:
Master File 6000 pixels on the long side Tiff file 75MB RGB
Master Crop 4000 Px Tiff file 40 MB RGB
Derivatives:
2000 pixels Jpeg
768 Pixels Jpeg
150 Pixels jpeg for thumbs
This was
Hi Amy
When you say master, are considering this an Archive type image (a
file that can replace the original film if destroyed), or an image that
can be multi-purposed for offset press, web, analysis, research etc.?
On Oct 12, 2004, at 3:31 PM, Amy Stidwill wrote:
I am in the process of
Amy,
A few things that might be of interest:
California Digital Library
Digital Image Format Standards (2001)
http://www.cdlib.org/news/pdf/CDLImageStd-2001.pdf
Imaging Best Practices - Digital Publishing Group - UC Berkeley
Peter,
Yes to your second description of an image that can be used to make
derivatives for a variety of purposes.
Thanks,
Amy
Amy Stidwill
Visual Resources Manager
Hillwood Museum Gardens
4155 Linnean Avenue, NW
Washington, D.C. 20008
(202) 243-3910 phone
(202) 966-7846 fax
Hello Amy,
I managed various digitization projects in the past 6 years, and a good
rule of thumb is to push the limits of your digital acquisition
hardware. We scanned a multitude of source material (lantern slides,
nitrate negatives, positives, 35mm, etc., or over 60,000 objects) and do
not
Amy -
If your master is to create derivatives, then I advise creating a master
that meets your needs for 90% of your possible uses. I find that on the
occasion that you need to make that unique use, it is better to rescan for
that specific purpose, this might be a large wall mounted displays for
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