Lightroom question - post converting to DNG

[gamgee]

Is it posible to convert PEF to DNG AFTER you did your adjustments in Lightroom and to retain them.
I learned (a bit late) that DNG holds adjustment settings inside itself and with PEF you have sidecar files. For me, that is enough reason to convert to DNG I just dont know if I will loose all the work until now.

[mithrandir]

You can export to DNG and that incorporates the changes.

[tcdk]

Select your .pef files - select Library->Convert to DNG in the menu

[rfortson]

Are the DNG's created by LR2 indeed smaller than the PEF files? This was the claim in Scott Kelby's book about raw files in general, but I haven't tested it yet. I know that in camera, the DNG files saved by Pentax are considerably larger than the equivalent PEF files.

[emalvick]

I don't know about Lightroom, but with the Adobe DNG Converter (which I assume LR uses), my K10d PEF's do end up as smaller DNG's. I think my typical PEF's are around 11 Mb and the converted DNG's are around 9 Mb.

The settings may influence the results though. I don't remember how mine are set to convert.

[krypticide]

There's some lossless compression that happens if you check that setting in the Convert dialog box.