Downloaded the latest version DxO Optics Pro to play around with the lens corrections abilities...
Was thrilled to see that it already had profiles for the K-3 (yay!), however when I navigated to a folder chock full of K-3 DNG RAW files, it said there were no files in the directory.
I sent a query to DxO about this and lo and behold got this reply:
Quote: Hello Kevin,
Thank you for your request.
We are experiencing some issues with the support of the DNG files from the K-3.
Our developers are working on it and a solution will be provided by January 15th.
We apologise for any delay. In the meantime, please use the PEF files.
So there's one reason to keep using PEF, if you're using Optics Pro...