Monitor profiling - banding - Conundrum.
Monitor profiling - banding - Conundrum.
- Subject: Monitor profiling - banding - Conundrum.
- From: neilB <email@hidden>
- Date: Wed, 19 Dec 2001 22:27:25 +0000
Guys [and gals]
compliments of the season.
I hope you'll fogive my posting on a question a friend has asked on
another list. It is indeed an interesting conundrum I feel.
from Bob Marchant
A little brain teaser.
Am now on third hardware/software solution for monitor calibration.
After eyeballing calibration (no puck) with Colorblind Prove-it! I can
generate a black to white stepless bandless colourless RGB [graywedge]
in Photoshop.
The same can be done by linearising the settings.No colour shift , no
banding.That which I shoot (digitally,colour calibrated camera system)
is the same colour and grad as my monitor,which prints perfectly on my
profiled printer.
If using a puck, my gradient shows both stepping(banding) and colour
inconsistencies.I am told that this is a usual occurrence but
considered acceptable to achieve correct colour overall.
But this argument is surely fatally flawed as if I read one of the
magenta stripes in the gradient on my hardware calibrated monitor,then
the RGB values are even.But by filling a square with these values you
get a distinct colour cast.
Also ,having just shot some ads on an off black to black cove,and
coming across the usual banding problems with CMYK conversion,I need
my captured stepless gradient to appear perfectly stepless on the
monitor in order to achieve the correct minimal amount of noise
application to ensure good repro.This can't be done as accurately as I
would wish with the hardware calibrated monitor.(La Cie 22" and quite
youngish).Same thing happens on my other younger La Cie 22' and my
ancient but willing and enthusiastic Radius,which has been given the
Viagra of monitors ,a new video card.
As I say,my [profiled Epson, cross rendered CMYK] aim print output
exhibits perfect balance,and so does the printed page.
So,how many of you out there can generate a perfectly even black to
white gradient on their monitor,and which hardware/ software are you
using.I've used to date Colorblind [Prove it!] hardware [Sequel 4] and
software,Optical and Spyder and Profile City [ICC Display] with Sequel
4 Puck.
I've pulled out old software,preferences,control panels etc etc.Even
tried hair.
This is an obsessives' question.All I am seeking is absolute
perfection.Is this unreasonable?
Regards,
Bob Marchant.
is he asking for too much? his onscreen gradation is very smooth
indeed with the visual pathway in Prove it!
Regards
NeilB
- - - - - - - Neil Barstow - Colour Management Consulting - - - - - - -
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