![]() Tion © specify, how the conversion will be done. Clicking on Change Preferences brings up the following dialog box:Ĭompressed r should always be used since it is a lossless compression, reducing about 10-65 % from files sizes. Image Conversion method r There are two ways to do the conversion: retaining the original RAW data - usually the data of the Bayern pattern sensor data - and a conversion to a linear picture. In most cases, the first method is preferred. As improvements in the Bayer pattern interpretation (also called demosaicing) come along, you still retain original data and may apply any improved algorithm to that data. As significant improvements were implemented in the past couple of years, more may be expected. Converting to a linear form actually performs an interpolation of the Bayer pattern (exception: RAW files from a camera with a Foveon-based sensor). ![]() In doing this method, some potential of your RAW negative is lost if you want to go return to the original RAW data. Additionally, file size increases by about 60 to 300 % (the linear version holds RGB data, while native RAW format stores but one pixel value per sensor element). Original Raw File ► You may embed the complete and original RAW file into a dng file, essentially making dng into a wrapper for your RAW data. You may extract the original file from the dng file (to extract such a file, activate he button Extract at the bottom of the conversion dialog box).Ĭlicking Convert initiates batch conversion. DNGC is quite fast, but converting many large files still takes time. Progress is indicated in a separate window. ![]() Stop the conversion by clicking Stop Conversion. Thank you for using the Adobe DNG Converter. Adobe offers a full line of digital imaging products to help you get the most out of your photographs.Īs with original RAW files, DNG files may be used as input to RAW converters. If you attempt to open a dng file using Photoshop, it will launch Adobe Camera Raw to do the conversion from DNG to standard image format, as described in chapter 4. The dng file includes all metadata, such as EXIF and ITPC data, embedded in the original RAW file. It may not, however, contain some undocumented proprietary parts whose meaning is known only to the manufacturer of the camera. To keep that data, as well, you must embed the original data in dng, hoping that its meaning will be known to Adobe (or possibly another provider of a RAW converter) to be released at a future date. If you use Photoshop CS2 (Photoshop 9) or later, there would normally be no need to use DNGC, because Adobe Camera Raw 3.x produces DNG files, as well.
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