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The 3 Grades of Enlargement Quality
photographs are primarily digitally-produced prints that will look
like good images to the naked eye. They are not intended to be used
for careful examination under any magnification such as a stereo
viewer or magnifying lens. They are, however, fine to use as
reference photos to include in a documentation file, as overview
photography for year-by-year comparison, and large displays such as
framed wall hangings or courtroom exhibits.
Quality enlarged photographs are
primarily digitally-produced prints that can be viewed under
magnification up to approximately 6x without pixelation (digital
degradation). These images are intended for use with stereo viewers
and commonly available magnifying glasses. They can be a more cost
effective solution to having enlargements made because the digital
enlargements can be produced from intermediate prints that have
already been enlarged to some degree through traditional chemical
photographic means which provide Examination Quality images. These
images are made up to between 8"x10" and 12"x12",
depending on the source.
photographs are either digitally- or chemically-produced prints that
can be viewed under magnification with minimal or no pixelation
(digital degradation). These images are suitable for all purposes,
but can be expensive to produce. Also, they are becoming more
difficult to acquire due to limitations in the production methods.
Chemically-produced prints are becoming unavailable from certain
sources due to the rising costs of production; the photographic
industries ceasing to sell the necessary raw materials; and the
comparatively small demand for such detailed imagery.
Digitally-produced prints are limited by the scanning technology used
to produce the detailed image. In order to maintain the maximum
quality of a digital print, the original data must be scanned at very
high resolutions. Some vendors do not provide digital images at high
enough resolutions to allow for very much enlargement in the final
Examination Quality print.