Originally posted by enoeske The "HD" lenses are rather new and Adobe doesn't seem to be in a rush to add Pentax profiles. So, they aren't in the current database. No, an older version would not have them either.
It seems that all new Pentax lenses are supported by LR/Camera Raw, even the new full frame 24-70:
https://helpx.adobe.com/x-productkb/multi/lens-profile-support.html#Pentax
But what I found is that for HD 20-40/2.8-4 the JPEG profile is not there, in my case only with RAW it works.
Also, there's a bug because even if HD 15/4 is not supported, I cannot even select manually the supported smc 15/4 (which for distorsion/vignetting should have the same behaviour), because Pentax does not appear in the list of selectable brands.