What resolution does the Archives scan at?
It depends on the size of the object being scanned. Smaller originals need to be digitized using a much higher scanning resolution than a larger original in order to extract the same amount of detail from the image. We use a scan resolution that will allow us to create a final image measuring 3000 pixels on the long edge after processing and cropping. An 8″x10″ original needs to be scanned at 400 PPI in order for us to produce a final image (after cropping) that measures 3000 pixels on the long side, while a 35mm negative needs to be scanned at a much higher resolution – 2400 PPI.
