Inside Adobe’s New Digital Negative Format

[James Fee]

http://story.news.yahoo.com/news?tmpl=story&cid=77&e=2&u=/mc/20040930/tc_mc/insideadobe8217snewdigitalnegativeformat

"Adobe’s new DNG file format is a nonproprietary extension of the raw-oriented TIFF-EP file format, itself an extension of the TIFF 6.0 format that Adobe maintains and controls (because TIFF was invented by Aldus, and Adobe purchased Aldus more than a decade ago). The 40-page specification details how the DNG format expands upon TIFF, including restrictions on existing TIFF-EP tags. It also describes some 38 new tags to store all the camera-specific information a program needs to interpret the raw data, including camera calibration, white and black points, noise reduction, lens information, and even camera information such as name, localized name, and serial number. There are ways for camera makers to store private data that the camera may need, but even so, DNG files should still be recognizable as TIFF-EP files, even though TIFF-EP readers may not provide the best conversion from raw data to processed images."

Another great article on the insides of Adobe's DNG RAW format. The more I read about DNG, the more I'm becoming a believer of the format and it's success. Even without camera makers getting on board, it just makes sense to convert your CRW and NEF files into DGN.

[James Fee]

http://story.news.yahoo.com/news?tmpl=story&cid=77&e=2&u=/mc/20040930/tc_mc/insideadobe8217snewdigitalnegativeformat

"Adobe’s new DNG file format is a nonproprietary extension of the raw-oriented TIFF-EP file format, itself an extension of the TIFF 6.0 format that Adobe maintains and controls (because TIFF was invented by Aldus, and Adobe purchased Aldus more than a decade ago). The 40-page specification details how the DNG format expands upon TIFF, including restrictions on existing TIFF-EP tags. It also describes some 38 new tags to store all the camera-specific information a program needs to interpret the raw data, including camera calibration, white and black points, noise reduction, lens information, and even camera information such as name, localized name, and serial number. There are ways for camera makers to store private data that the camera may need, but even so, DNG files should still be recognizable as TIFF-EP files, even though TIFF-EP readers may not provide the best conversion from raw data to processed images."

Another great article on the insides of Adobe's DNG RAW format. The more I read about DNG, the more I'm becoming a believer of the format and it's success. Even without camera makers getting on board, it just makes sense to convert your CRW and NEF files into DGN.