I have a new Viewsonic VP2250wb LCD and I cannot find any claim to the bit level of its LUT. Unlike higher end monitors that boast a 12bit or higher LUT. Since this is a relatively low cost LCD, I'm guessing that it is 8 bit device. Is there any way to determine this?
I use a Spyder 2 colorimitor and ColorEyes Display Pro to calibrate. CEDP provides the capability of an 8 or 16 bit, or Matrix ICC profile. How important is it to match the bit level of the profile to the device? I've tried both 8 and 16 and there are subtle differences between the 2. Frankly I think the 8 bit is better, not as red. But maybe the 16 bit is more accurate despite my personal impression.
Thanks for any guidance.
Profile has nothing to do with monitors LUT. It doesn't matter if it maches LUT's bit level. Profile contains the colorimetric characterisation of the device, that's used by application Color Management Module.
Naturally, 16 bit table profile is more accurate than 8 bit profile, but - in case of monitor profiling - simple matrix profile is also recommended - it may be less acurate, but it provides better smoothness of gradations.