I see the warm/brownish cast on printed photos as well. FC
On Mon, Nov 23, 2015 at 5:26 PM, KOVÁCS István <k...@kovacs-telekes.org>
wrote:
> Do you see the cast in the prints only, or on your display as well?
> (My display is an entry-level IPS, HP ZR22W, calibrated a month ago
> using Xrite i1 DisplayPro and dispcalGUI 1.7.1.6 and Argyll CMS 1.5.1.
> I prefer the 'not-corrected' version, I'd say that one is right, the
> other has a blue tinge.)
>
> On 23 November 2015 at 21:02, Francisco Cribari <crib...@gmail.com> wrote:
> > Dear Kofa,
> >
> > I proceeded as you suggested in Gimp and the gradient does *not* look
> > brownish on my monitor. I always calibrate my monitors using dispcalGUI +
> > ColorHug. I've printed a fairly large number of black and white of photos
> > (here in Brazil and also at Blurb) and noticed a slight brownish (warm)
> tint
> > on them (at least, on most of them). That's why I use the minor
> correction I
> > described in the video which is made using Darktable's color correction
> > module. (It does not work when the BW conversion is done using channel
> mixer
> > since channel mixer comes after color correction in the pipeline. I then
> use
> > the monochrome module for BW conversion.) Having said that, the problem
> > might as well be on my end.
> >
> > I have just exported the same photo without and with the correction.
> Could
> > you please take a look at them and let me know how they look on your
> > monitor?
> >
> > no correction:
> > https://dl.dropboxusercontent.com/u/2171814/photo-not-corrected.jpg
> >
> > correction:
> https://dl.dropboxusercontent.com/u/2171814/photo-corrected.jpg
> >
> > It would be useful if other people could do the same and let me know how
> > they see the two photos on their monitors.
> >
> > Thanks for your feedback. Francisco
> >
> >
> > On Mon, Nov 23, 2015 at 4:32 PM, KOVÁCS István <k...@kovacs-telekes.org>
> > wrote:
> >>
> >> Dear Francesco,
> >>
> >> Thanks for letting us peek into your process; I like your images a
> >> lot, and it was interesting to see what you do in the darkroom (of
> >> course getting an interesting composition is the basis for everything
> >> you do).
> >> One thing that caught my attention was you mentioning a brownish cast
> >> that you had to correct in the Colour correction module. I seem to
> >> recall you mentioning this previously on Google+; I think there the
> >> consensus was that likely your display profile is wrong - R=G=B should
> >> give a neutral grey. Could you check this by launching Gimp, loading
> >> your display profile (Edit/Preferences/Color Management/Monitor
> >> profile), then create a gradient from black to white. If it looks
> >> brownish, your profile is definitely broken.
> >>
> >> OTOH, if you simply prefer a slightly cooler, blueish hue, it's simply
> >> personal preference.
> >>
> >> Thanks again,
> >> Kofa
> >
> >
> >
> >
> > --
> > Francisco Cribari - http://www.cribari.com.br - "All theory, my friend,
> is
> > grey, but green is life's glad golden tree." --Goethe (Faust)
>
--
Francisco Cribari - http://www.cribari.com.br - "All theory, my friend, is
grey, but green is life's glad golden tree." --Goethe (Faust)
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