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This privacy notice provides an overview of our commitment to privacy and describes how we collect, protect, use and share personal information collected through this site. Pearson Education, Inc., 221 River Street, Hoboken, New Jersey 07030, (Pearson) presents this site to provide information about Peachpit products and services that can be purchased through this site. When you click Convert, DNG Converter goes to work converting the selected raw files to DNG format using the options specified in Preferences, and displays a status window that shows the progress of the conversions (see Figure And yes, the compression is truly lossless.Īfter selecting all the relevant options and preferences, click OK to get back to the main DNG Converter window for processing. Unless you own stock in a hard drive vendor, we can’t think of a practical reason to select this option.
Uncompressed turns off the default lossless compression for the conversion.Processed Linear DNG files are much larger than raw unprocessed mosaic ones, so if you’re thinking you can save processing time by converting to linear DNG, think again-any savings in processing time are offset by the extra time needed to read the increased data. This option is mostly useful if you want to use a DNG-compliant raw converter rather than Camera Raw on images from a camera with a mosaic pattern that isn’t supported by the raw converter. Linear (demosaiced) saves a demosaiced version of the image.Unless you have a compelling reason not to, you should use version 1.3. An example of an Opcode List would be processing steps to autocorrect for camera lens defects. The most recent version of the DNG specification (1.3) added DNG Profiles and Opcode Lists that allow additional processing steps to be specified in an extensible manner. Backward Version allows you to choose either DNG specification 1.1 or 1.3, which is the default.The Custom DNG Compatibility dialog available from the Compatibility dropdown menu allows you to set three important DNG conversion options (see Figureįigure 3-10 Custom DNG Compatibility dialog box. You can use this option for your archived images just in case you need to retrieve the original raw files at some future date, but we suggest you turn it off for your working files to save space, because embedding the original raw file increases the file size considerably. Embed Original Raw File embeds a bit-for-bit copy of the original raw file in the DNG, from which it can be extracted at any time.We tend to stick with the Medium Size as our option. If you use a third-party application that relies upon the DNG preview for showing the image data, you should make sure you select one of the two preview sizes. Preview lets you choose whether or not to save an embedded preview and at what size.In the dropdown menu there is an item called Custom that allows you to select additional options. If you need the broadest compatibility as far back as Photoshop Lightroom CS2, choose Camera Raw 2.4 and later. If you save your DNG with the option of Camera Raw 5.4 and later, earlier versions of Camera Raw and Lightroom may not read the DNG file correctly. Compatibility allows you to select the version of Camera Raw and Adobe Photoshop Lightroom that will be able to read the resulting DNG file.The conversion preferences offer three main options: In recent editions of the DNG Converter (new since DNG Converter version 5.4) the choices for conversion have been complicated by a couple of factors: you can select the backwards compatibility of the resulting DNG file and you can choose the DNG specification to use when saving (see the next section, “Custom DNG Compatibility”).
If you have previously saved DNG files with the original raw file embedded, you can extract the original raw file by using the Extract button.
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