Digital Imaging in Conservation: Cameras (2005)

by Tim Vitale.

Digital images can vary in their quality because they are dependent upon hardware and software combinations. Images from point-and-shoot cameras, outputting JPEG images, will be inferior to film in many ways. However, both digital scanning backs and flatbed scanners routinely out perform film on the basis of resolution, noise and color fidelity. When used wisely, DSLR cameras will also outperform film. Camera and scanner manufacturers offer many automated options that facilitate quick imaging to meet the fundamental needs of the average consumer. These “automated” functions generally negate the inherent quality of digital capture in favor of a pleasing appearance, based on consumer studies. Users wishing to extract the most information from a digital image will turn off all automated functions except focus and metering, and open the RAW (unprocessed) file in Photoshop, saving the image as 16-bit TIFF file. This workflow runs counter to many manufacturer recommendations that rely on compressed JPEG images made using proprietary software. [via]

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Digital Imaging in Conservation: Cameras (2005)

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