My Adobe DNG chat with Eric Chan

For the past several years I’ve used Adobe’s DNG file format to store the raw image data captured by my digital cameras. I convert my Canon CR2 raw files to DNG early in my workflow and don’t keep the original raw captures. I’ve had great success with a DNG workflow and since DNG files contains the original raw image data, I’ve seen no need to retain the native files.

In every class and workshop I teach, the subject of DNG inevitably comes up. There’s a lot of confusion and uncertainty about DNG. So when researching subject matter for my next book, I thought I’d polish up my knowledge of this essential image file format.

In doing so, I reached out to one of today’s leading imaging software developers, Eric Chan, Senior Computer Scientist at Adobe. Following is a [very minimally edited] transcript of our email conversation. (more…)

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