On lundi 9 avril 2018 08:20:05 CEST Chris Cunnington wrote: > As have been a lot of my replies today... I do not do things blindly, I > work with lossy on purpose and have my reasons which have worked well for > me for over 5 years now. Yes, you will have yuor reasons for a workflow that is valid with *lightroom*
> but whilst everyone has now decided to point blame at the dng format I > think we can stop this thread. As I hoped to learn more about DT, not dng. As long as we don't know how you convert your raw files to DNG, and you won't provide the "native" raw file, that won't change. Having looked at the dng you provided, there is indeed something fishy about it: no indication of raw over-exposure, but a very sharp peak in the histogram at the far right. When I look at my images, if I can't get detail back in the sky, the raw over- exposure indicator (the little 'bayer' square under the image) gives a nice rgb pattern over those areas (indicating *all* channels are blown) > DT, clearly needs to find simpler solutions to its not so simple/effecient > highlight recovery/reconstruction workflow. Most of my searching lead to > blogs with this being the biggest complaint. There, I beg to differ. DT clearly isn't the easiest program to use, but in exchange it gives you a lot of control over what is done. But, mastering a complex tool takes time. What you could try on the image you showed: - make sure "Highlight reconstruction" is on "Reconstruct in Lch" - select a different "basecurve" (in this case, I'd go for the "Leica" curve, as it's a lot less steep than the canon ones). - use "exposure correction" with -1 EV and a parametric mask for the L channel, where you push the closed triangle from the left all the way to the right. - use "shadows & highlights". With this, I've managed to get some detail back in skies which were (according to DT) completely blown out (raw overexposure indicator showing RGB all over- exposed...). ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
