Originally posted by yucafrita I have a question regarding RT reading Pentax raws. In the camera I can turn on several lens correction settings, and if I understand this correctly, this information in written into the raw file. I am pretty sure that DCU processes this out of the box but what about RT? Does it process the information as well or does it not care about it and instead only uses the lens correction profiles which one can apply?
Pretty much what
JensE said. If you want a slightly cleaner version of the OOC jpeg with all the settings intact, PDCU5 will get you the same thing 'cause it has all the camera settings available. RawTherapee lacks this information.
I can say one thing. There are times where PDCU5 seems to mess up the colors, particularly with bright colors.
https://drive.google.com/open?id=1AuPT79LEO3z27JaptVtE6R14DaSUaaDQ
^ Here's a zip file containing 2 RAW files from my K-50 that show an example of what I mean. They're a couple of ISO 12800 shots that were taken at Disneyland. They're obviously not the greatest shots ever, but pay attention to the colorful lamps above the teacups.
They seem to lose color in PDCU5, but remain very colorful in RawTherapee. The color alterations also happen in PDCU5 with a lot of other shots & doesn't matter what ISO the image is at. But then again, it could be that PDCU5 doesn't technically support the K-50. I don't know.
The zip file also has a PDCU5 jpeg extract, PDCU5 RAW conversion using the Bright image tone, & my RawTherapee conversion using the Bright .dcp file. The RawTherapee PP3 files & the Bright.ini for PDCU5 are in there as well. Feel free to download & compare.