RAW with Kx in PS5

Hi.
I want to shoot in RAW and process in Photoshop CS5. Unfortunately it appears that PEF files are only recognized in PS6 and later. Are there any free or cheapish programs that I can process PEF files with that will either work in PS5 or at least can be processed and then changed to a jpeg for working in PS5. Thanks.

I would have thought there is a DNG file option on the camera, if there is give that a go.

John

Hi
Yes there is a DNG option in the camera, but not sure I fully understand what DNG files actually are. DNGs won't open in PS5. When I try it just comes up with one of those File Not Recognised or File is Unsupported boxes.

What camera are you using? edit Kx I see

I assume that the version of Camera RAW in PS CS5 is too old to recognize the DNG files produced by your camera. Have a look here https://helpx.adobe.com/camera-raw/kb/camera-raw-plug-supported-cameras.html

DNG and PEF files are both RAW files. DNG is Adobe's universal RAW file and PEF is Pentax proprietary one. Both will need converting in a RAW converter to produce images which can then be saved as JPEG or TIFF for example.

edit...PS CS5 is compatible with Camera RAW 6.7 . It appears from the link above that you should be able to open PEF files in Camera RAW 5.6 and above. So you should be able to open them ?