Popping in quickly...
(Sorry, I seldom get to read PDML lately.)


I've always used Adobe DNG converter which works well (or at least used to).
https://helpx.adobe.com/camera-raw/using/adobe-dng-converter.html

One thing that you'd need to choose there is the target version of DNG.
I would first convert just one file and check it by opening in all the software tools that you are planning to use, to make sure it is adequate.


Yet another option that could be viable for you is to install a codec for viewing RAW files on Windows (I believe it should allow showing thumbnails in Windows Explorer as well as in Windows' own image viewer, "photos".) If you have Windows 10, - you can get a free Microsoft's package "Raw Image extension":
https://www.microsoft.com/en-us/p/raw-image-extension/9nctdw2w1bh8?=&activetab=pivot:overviewtab
Presumably, it should read all Pentax DSLR's raw files, as it is using this library:
https://www.libraw.org/supported-cameras


If you need that same functionality on a Win-7 computer, Ricoh/Pentax has a raw codec for Win-7:
http://www.ricoh-imaging.co.jp/english/support/digital/rawcodec_win.html

I hope this helps.

Igor



ann sanfedele Sun, 03 Oct 2021 07:36:05 -0700:

I have a couple of hundred PEF's that are all in one folder on my harddrive.. would like to copy all of them to DNG's so I can view the thumbnails in windows explorer on my computer.. I can see them in Freestone.. but it is cumbersome for me with my work flow..


Can I do this in bulk? Got a link to a free down load for me that will work?


thanks guys,
ann
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