The Bigger Picture: Visual Archives and the Smithsonian
Scantastic: Scanning Archival Images to Make Them More Useful
One thing has changed drastically since John Dillaber started working as a museum technician in the Smithsonian Photographic Services twenty-five years ago, giving both staff and the public access to prints made from the Institution’s vast photographic archives. Whereas John’s work was initially in the dark room, he now spends his days at a computer, Photoshopping scans that have been made of older, original photographs in the collections, as well as working on more recent digital images.
This switch from “wet side” of the dark room to the “dry side” of digital photography cuts the amount of time John spends on processing photos, and enables him to more effectively enhance photographs so that the greatest possible amount of data can be gleaned from them. In the course of traditional photographic printing, each print used to require careful dodging and burning to bring out details, and then needed to be retouched by hand as well. In that sense, every photograph printed from a negative or glass plate in the photo archives was unique. Today, Photoshop software allows John to easily highlight details in an old photograph, and to repair or restore damaged photographs. And when he does, he keeps a raw scan of the original photographic negative or print while creating a new digital file that reveals details in a photograph that might never have been visible or noticed before. “Sometimes when you scan an old image,” John explained, “it reveals a lot. People who have never seen the [original] film, have never held it in their hands, only get to see an image as it was printed in the old days. They may be looking at a photograph that wasn’t printed well . . . there may be an area in the orginal image that needs some [enhancing]. With digital I can see all the information in an image more easily, and right away.”
The results of John’s work can be striking. And, it’s important to remember that in addition to new digital rendition of the image, the original photograph, with all its physical traces of use—dirt, tears, crop marks, and any captions or notes that appear on the front or back of the photograph (all of which are crucial pieces of the photograph’s history)—is still preserved in the archive for future study and use. Stay tuned next week for a look at one of John’s recent scanning projects with the Freer Gallery of Art and Arthur M. Sackler Gallery Archives, which revealed some secrets about China’s last and most famous empress, Cixi, Empress Dowager. As an ongoing feature on THE BIGGER PICTURE, we will be highlighting the work of Smithsonian Institution Archives staff that digitizes, archives, and preserves the photographic collections at the Archives. John Dillaber works at the Smithsonian Institution Archives in the Digital Services Division.
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I am curious what types of scanners does the Smithsonian Institution use?
Peter, Staff at the Institution use quite a range of scanners since we deal with many different types of materials and dimensions for just still images. This includes nitrate negatives as shown in this post as well as 35mm film, slides, transparencies, cyanotypes, color transparencies, photographic prints and very large images. You can see some of the panoramic photographs originally photographed by our fourth Secretary Charles D. Walcott that we've digitized. A few of his photographs are around 9 feet long - something that wouldn't fit on your typical flatbed scanner. Here at the Archives, we use flatbed scanners for most of our letter-sized objects, vertical loading scanners for items like 4"x5" negatives, slide/film scanners for - as you might expect - slides, and a high-end professional camera on a camera stand for our oversize items like the panoramas I mentioned earlier. Other museums and research centers here at the Institution use other equipment to such as orbital cameras. In general, the state of the art for scanning flat/still images is heading towards high-speed high-end cameras particularly for high volume digitization projects. Hope this helps. Ricc Ferrante, IT Archivist
An example of a digitized Walcott panorama http://siarchives.si.edu/techsvcs/walcott/1333_750w.htm is available as part of the "Beauty in Service to Science" online exhibit. http://siarchives.si.edu/techsvcs/walcott/index.htm
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