On 09/04/18 19:28, Timur Irikovich Davletshin wrote:
On Mon, 2018-04-09 at 10:06 -0700, Peter Cripps wrote:
At risk of complicating this discussion, I processed an over-exposed
RAW
file in darktable and Lightroom. In both cases, I pulled the
exposure
back by 2ev. No other tweaks. The results are quite different, and
seem
to show that dt is losing some of the high intensity pixels.
(I said 'seem to'. Please don't pile into me!)
https://www.dropbox.com/s/se9yawlsbl7zpff/darktable.jpg?dl=0
(darktable)
https://www.dropbox.com/s/0cepsk7i54v4x72/Lightroom.jpg?dl=0
(Lightroom)
https://www.dropbox.com/s/mrg997wamwg6yj6/Y5050211.ORF?dl=0 (.orf)
Well, did they look the same before reducing exposure? I wonder if
basecurve is the same in both cases (two options are available in DT).
Looks like LR does some sort of highlight reconstruction by default, if
you enable LCh reconstruction in DT you will get same amount of details
but different color cast.
That "Tone: auto" is quite suspect in LR; if you reduce 2EV the
exposure, unless you have a *lot* of DR headspace in the highlight, it
seems strange that the photo still have pure white --- DT feels more
"physical" in that shot.
If you enable fusion in the base curve, and shadow-highlights, and so
on, you have similar things --- mind you, HL are blown, so it's
impossible to fully recover them...
https://imgur.com/dtCJReE
Romano
--
Romano Giannetti
http://www.rgtti.com/
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