110 · SPEC Kit 294
Digitization Standards: Transparent Materials
These standards apply to transparent film originals such as 35mm slides of previously
printed materials and negatives. We assume that these materials are being digitized
primarily for in-class presentation, and therefore recommend only the highest digital
capture resolutions. We further recommend a series of pre-production scans at multiple
levels within the specified ranges to accommodate differences among scanning
hardware devices and to establish uniform digital capture standards for the project.
Group A: not recommended
Group B
» Detail desired
» Text capture
» Born-digital surrogates of existing and accessible objects originals still
available for technical upgrade
» Digitization of previously printed materials
» Resolution standards usually medium to high
Examples: Image intensive presentations—art history lecture Images of
manuscripts to be displayed with text transcription maps.
GROUP B Digitizing Standards for transparent materials
MASTER DISPLAY
Resolution 600 -1200 dpi 72 dpi
Long Dimension 262 -12K pixels 63 -630 pixels
Bit Depth 1 bit bitonal, 8 bit grayscale, 24 bit color 1 bit bitonal, 8 bit
grayscale, 24 bit color
File Type TIFF (LZW) JPEG
Compression lossless Lossy
Group C
» Greatest detail desired
» Images for very detailed analysis and /or images that are digitized for
preservation purposes
» Born digital items where access to the original is limited
» Brittle and/or light sensitive archival materials (you may only be able to
scan the original once)
» Microprint /microform.
» Highest resolution standards
Examples: lantern slides brittle manuscript pages slides digitized for
preservation purposes painting in which detail of brush-
strokes is desired.
Lower
resolution
University at Buffalo, SUNY
http://ubdigit.buffalo.edu/about/tools/digit_standards.php
Detail
Continuum
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