Datacolor User to User Support Group.

Hi 


I've just got a spyder2pro monitor calibrator, and I'm dissapointed 
with the results. Using the manufacturers profile (HP f1903 19" LCD 
monitor) the colours are 'fairly' accurate, and I can clearly make 
out all the shades from the following page (just as a common 
reference)

http://www.cambridgeincolour.com/viewing.htm 


However, after calibrating, and using a McBeth colour chart (24 
patch) to guage against, the colours on screen are MUCH darker (at 
least a stop), and I can only differentiate that lightest dark shade 
from the above website. If I increase the brightness (backlight) & 
contrast to maximum after calibration, I get much closer colours, but 
still cannot see the darker shades - however, surely this negates the 
point of calibration.

Calibration settings I'm using are 6500K, gamma 2.2. The best results 
are also after calibration in the morning when the sun is not visible 
from the window to the room I'm in. This makes sense as I'm using 
natural ambient daylight.

I'm also using a jpg from the Dry Creek website of a ColourChecker 
chart, with the patches altered to the correct sRGB values as 
documented with the physical colour chart. In theory I should be able 
to compare the chart against the screen, and the two should be 
identical. They're not unless, as stated above, I bump up the 
brightness & contrast to max on my monitor. Either way though, I 
cannot see the darker shades.

I get slighter better dark greyscale results if I go to 1.8 gamma, 
6500K, but the colours are not as accurate.

Does anyone have any ideas as to how I can improve on the results I'm 
getting? I cannot see anything wrong with what I'm doing - and trying 
to calibrate in a dark room actually makes things far worse.

-- 
Regards 
Mark