Re: Repetitive Calibration with Optical
Re: Repetitive Calibration with Optical
- Subject: Re: Repetitive Calibration with Optical
- From: "Bertho Boman" <email@hidden>
- Date: Fri, 17 Jan 2003 17:10:55 -0500
- Organization: Vinland
David,
Here is the update:
Going back and forth between enabled and disabled calibration in
OptiCal, and taking multiple readings in PreCal to average out the
little noise I am seeing, only gives a 0.8% change. Not what I saw
previously. After some testing I found out why there previously was a
drastic change:
Previously, (last week) I had carefully set the white point to 6500K in
both programs. In that case, there is a drastic interaction! Now, I
know not to do that and once the programs gets integrated, the
possibility of that user error will disappear.
Bertho
----- Original Message -----
From: <email@hidden>
>
Changing the state of the monitor in midstream does not mean that
PreCAL
>
didn't flash the video card clean when it started up; you are
sabotaging the
>
process. That said, you may still have stumbled on a particular
problem with
>
using PreCAL outside of OptiCAL on some Windows systems. A better test
would
>
be to have calibration on (checked) in OptiCAL, then launch PreCAL
from
>
within OptiCAL, take initial readings, then a second set (since the
reread
>
procedure is a bit different) then to go back to OptiCAL and uncheck
>
calibration, and retry in PreCAL. That, in theory should make no
difference
>
in reqadings. Checking it again, in theory, should. That would be
correct
>
behavior, even though we are abusing the intended workflow.
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