The process for this documentation is described as follows. The location, viewing direction, and a description for each image are recorded on a log sheet. Additionally, GPS coordinates are recorded for each location. The log and GPS data are then used to create locator maps. The photographs are made using a large-format 4x5-inch film camera on Ilford FP4 (ISO 125) black and white film. The film is hand processed with Kodak chemicals to archival standards, including a hypo-clearing agent rinse. The film negatives are then individually scanned at 1200 dpi in full frame using anti-newton ring glass, saved as uncompressed Tagged Images Files (TIF), and burned to an archival quality CD-R/DVD-R. The TIF files are then used to produce digital contact prints scaled 1:1 on Epson Ultra-Premium Presentation Matte archival print paper using Epson Ultrachrome carbon pigment inks. The film negatives are individually labeled with the HABS/HAER/HALS project number in the negative margin using a 0.2mm permanent archival ink pen, and placed in archival paper sleeves labeled in pencil. The prints, log sheet, and locator maps are then placed in archival clear page holders. All procedures and deliverables follow the guidelines provided by the National Park Service, Heritage Documentation Programs.
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