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Drag and drop the corresponding image as a JPG or PNG into the main field and click the LUT reference. The image is displayed but not uploaded – for a quick view with files up to 2MB. Once the preview has loaded completely, it also works without an Inernet connection. The previewer runs in all browsers, but the latest version of Chrome is recommended.
Try it yourself here: preview.iwltbap.com
There’s a windows tool for that now, too for previewing local LUT files on your footage,
called LUTastic!
http://www.fatpigtures.com/lutastic.html