However, if you are smart about your camera settings, the space savings offered by the DNG format are more or less insignificant. So you could potentially save a lot of space by using the DNG format, provided you fully understand the implications of such things as lossy compression and down-sampling. And if you do not need full-resolution DNG files, there is even an option for lossy compression, with the ability to limit the total megapixel count. In addition, there is an option to generate smaller JPEG previews, which results in additional space savings. This alone can result in 50% or more in space savings. When dealing with uncompressed RAW files, DNG certainly does save a lot of space by converting huge uncompressed RAW files to losslessly-compressed RAW files. The DNG format is a lot more versatile than a RAW file, because it allows you to tightly control the RAW file conversion process and specify conversion options. 2) Disk Space Concerns โ Does DNG Really Save Space? Depending on the size of the file and its resolution, this could take a long time, especially if you are dealing with thousands of images. Keep in mind that DNG conversion is not a simple process โ the DNG converter must not only copy and generate EXIF data, but it also must generate a JPEG preview to save into the DNG file, if you choose to do so (and it is always a good idea, since images can be previewed quickly). Add the option of generating 1:1 previews on top of that process and I could be sitting and waiting for a while in front of my computer before I can finally start post-processing images. While converting small RAW files from low resolution cameras is barely noticeable, converting anything over 24 MP does take quite a bit of time. Whether I choose to convert my RAW files to DNG upon import or at a later point of time, the conversion process puts a significant burden on my import time and only complaints my workflow. Disk Space Concerns โ Does DNG Really Save Space?ฤก) DNG Conversion Increases Workflow Time.
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