The basics: RAW conversion, linearity, and DNG filesĮvery image sensor in every camera produces RAW files that need to be converted into a format that is capable of being displayed on-screen or printed on paper. In the centre, you can see the results of Noise Reduction in Lightroom, and on the right is the optimization as a result of using DxO PureRAW 3. This image was edited as a RAW file using Adobe Lightroom. As you edit your files, you might even find that you have greater flexibility than with the original RAW file.īy taking a RAW file and converting it to a Linear DNG file with one application and then editing it in another, you get to combine the strengths - one mathematical, one creative - of two different pieces of software. You can then take this optimized file into your photo-editing software of choice to complete the creative process - everything from white balance and exposure through to tone curves and color grading - with the knowledge that your final image will be the highest possible quality. Depending on its intended purpose, a Linear DNG might also complete other parts of the RAW conversion process such as denoising and lens corrections. Linear DNG files are RAW files that have been partially developed, having undergone some complex mathematical processing to lock in demosaicing. Linear DNG files are part of a solution that allows you to combine different software to get ultimate image quality without having to overhaul your entire workflow. Photo editing software such as Lightroom and Capture One might give you creative freedom and flexibility, but that doesn’t necessarily mean that you’re getting the best possible image quality from your RAW files. What are Linear DNG files and how should you use them in your photo-editing workflow?
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