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[Design/DTP]| Tuesday 13th May 2008 |
The update provides expanded specifications designed to provide increased flexibility and improved workflow for raw images. It provides several industry requirements including formalisation of the concept of a "camera profile" and allowance for multiple camera profiles to be embedded in a single DNG file.
Additional metadata tags have been defined, including a field to indicate the integrity of the raw data within the file.
Introduced in 2004 to provide a standard for raw files so that photographers will be able to access their images in perpetuity, DNG is a publicly documented specification that can be freely be adopted
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While the latter have been enthusiastic, camera makers have been slow on the update; Adobe lists just four models that use DNG as their native format for raw files.
The format is, however, supported by the two leading pro image management applications, Adobe's Lightroom and Apple's Aperture, though with some reservations.
Adobe also provides free software for converting camera raw files to the DNG format, and the format is supported by the Camera Raw plugin for Photoshop.
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