On lundi 9 avril 2018 17:12:41 CEST Michael Staats wrote: > Hi > After extracting the interesting information from the thread on > Highlight Reconstruction, it is very clear to me that using DNG files > created by LR are not camera raw files and should not be used. > Especially not to compare LR with dt when using different inputs, > actually... > > Fine. > > Now Pentax DSLRs have the option to save raw files as DNG or PEF. Well, > I thought I'd use DNG, as it is more "standard", even if it's an Adobe > standard. > And so far I can't report any problems. > > But now I wonder if it makes a difference? Should I better switch my > cameras to PEF (Pentax own raw format)? I think not, as I have read from > other sources (can't remember where) that both formats will contain the > same information. > But I'm not sure any more.
The latest DNG spec (and files produced by Lightroom, apparently), allow lossless compression. I haven't (yet) found any reasonably precise info on how that compression works. But in any case, it's one of the options. And that's what Chris Cunnington used for the example he gave us. But in your case, if it's a camera format, it should be the full raw data in a different carrier package. I can't imagine a camera maker who wants to be taken serious doing anything else... Trying a few in the PEF format and comparing the sizes will give you an idea; if sizes are comparable, you should have the full raw. Remcu ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
