ColorVision Spyder 2 questions...

Hi Guys,
I've just invested in the 'Spyder 2' monitor profiling kit from
ColorVision. The procedure seems fairly straightforward, however, I have a
question to ask if I may.

* What luminance value should I be aiming for?
( I am setting the whitepoint using the RGB sliders. Once the whitepoint is
set, I can, of course, move all three sliders up or down and change the
luminance whilst keeping the chosen whitepoint).

These are the parameters used to make my profile:

LCD Monitor
6500K
2.2 Gamma
Luminance ended up at 122 cd/m^2.

Many thanks in anticipation... Rob

I've just invested in the 'Spyder 2' monitor profiling kit from
ColorVision ... * What luminance value should I be aiming
for? ... Luminance ended up at 122 cd/m^2.

I have the older model Spyder and the software sez 85-95 is the target
luminance range. I usually get pretty close to 90. Surprised the
newer model doesn't give you an explicit number for a target or at
least a range.

Bill

I've just invested in the 'Spyder 2' monitor profiling kit from
ColorVision ... * What luminance value should I be aiming
for? ... Luminance ended up at 122 cd/m^2.

Rob, here's a link that's a couple years old now but discusses
calibration with OptiCal and PhotoCal, with a screen dump at the top of
the page showing the suggested luminance values ... you can probably
find something similar for the Spyder 2 on Ian's site, if he's still
keeping it updated.

http://www.computer-darkroom.com/pho...photocal_2.htm

Bill

Hi Bill... Thanks for your prompt reply...

I'm still new to the art of profiling and may very well have missed the
values of 85-95. I will look closer. Thanks also for the web link; very
useful... Meanwhile could you possibly comment on the following points...

* The screen looks 'darkish' at a luminance value of 90... is this OK?

* What are the consequences of choosing a much higher value, say, around
150?

* Does the luminance level affect the gamma significantly, or the ability in
any way to match screen colours with print colours in a managed workflow?

* When I set the LCD monitor to the factory defaults, as requested by the
instructions, the RGB
sliders go to 100%. If I then continue to calibrate the whitepoint at this
initial high RGB value, the resulting luminance ends up at about 190. To get
close to a final luminance value of 90, I would have to reduce all three RGB
sliders to an initial value of around 65, before calibrating the whitepoint.
Is this practice correct?

(I'm aiming towards a colour managed workflow that will give me prints that
look much like the
image I see on screen. Profiling the monitor is, obviously, my first step in
achieving this).

Many thanks for your help... Rob


"Bill Hilton" wrote in message
oups.com...
I've just invested in the 'Spyder 2' monitor profiling kit from
ColorVision ... * What luminance value should I be aiming
for? ... Luminance ended up at 122 cd/m^2.

Rob, here's a link that's a couple years old now but discusses
calibration with OptiCal and PhotoCal, with a screen dump at the top of
the page showing the suggested luminance values ... you can probably
find something similar for the Spyder 2 on Ian's site, if he's still
keeping it updated.

http://www.computer-darkroom.com/pho...photocal_2.htm

Bill