Re: Camera Profiling
Re: Camera Profiling
- Subject: Re: Camera Profiling
- From: José Ángel Bueno García <email@hidden>
- Date: Thu, 29 Jul 2010 09:43:02 +0000
Hello Lindsay:
Due to sensor CFA maybe never will have good transition between
shadows and lights in skin tones.
The idea on create a good prifile for a fixed environment is OK, but
the Kodak Grey Chart is, for me, out of color management workflow
because the presence of in camera histogram and the lack of color
management asociated a this tool.
I only use Minolta Flash Meter IV only to ensure that flat art is
uniformly iluminated or the contrast of a scene due to press and
monitor limitations.
It is supposed that you shot WhiBal with the exposure sugested by
Minolta FM IV. I use the Robin Myers Digital Gray Card or Color
Checker Passport White Reference to make WB. With Nikon D90 have to
shot the reference as if it was medium gray as manufacturer advises.
And I think that is a good idea shot too a contrast card to make more
uniform the capture stage, as references are for, avoiding changes due
to subject/object reflection characteristics.
You are lucky if you can afford a Color Cheker SG, but in your
environment a Color Cheker Classic could be enought.
Once determined exposure (that you can change to get a prefered
histogram) and white balance I shot in NEF (my Pentax support DNG) and
convert with Adobe DNG Converter to DNG (in this step is possible to
give a more comprehensive name to the file) with the purpose of be
able to profile with DNG Profile Editor, ColorChecker Passport or
i1Match (Color Checker SG required). Starting with ProPhoto and Adobe
Photoshop softproof you can get the better of your output devices. And
a good alternative is ArgyllCMS based GaMapICC.
I have recently purchased Capture One 5 (not Pro, that mean can't make
softproof) and find extremely slow, but with a very good highligt
recovery, but testing Adobe Photoshop CS 5 I have found improvements
that take me back to the emotional aproach to old 2.0.
Don't mention your output devices, and again as good alternative to
i1Match you can calibrate and profile with ArgyllCMS based dispcalGUI.
Necessary to mention that need colorimeter or spectrometer (taking
about i1Display 2 and i1Pro) and propper environment in your
"lightroom".
PD: Somewhere there is a GUI for, again, ArgyllCMS to profile your
camera under XP. Sorry, still waiting for a full ArgyllCMS GUI for OS
X.
Salud
Jose Bueno
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