Image Science Associates has released "Establishing Spatial Resolution Requirements for Digitizing Transmissive Content: A Use Case Approach." This study was conducted for the Still Image Working Group of the Federal Agencies Digitization Guidelines Initiative.
Here's an excerpt:
Guidelines for the digital conversion of transmissive content (negatives and positive slides) in the cultural heritage community have lagged behind those for print content. The primary reasons for this are twofold. Unlike print material, transmissive content is generally an intermediate format (as with negatives) or requires a viewing mechanism (such as a projector). In either case, there is no standard for the viewing of the object. The second challenge for digitization of transmissive content is, in large part, a result of the ambiguity of the visual output for slides or negatives.
| Digital Curation and Preservation Bibliography 2010 | Digital Scholarship |