15th
Monitor brightness and the Huey
The way I understand things are that more expensive calibration software [than the Huey] allows one to set a brightness level, e.g. 120 cd/m^2. Depending on the amount of ambient light, slightly different settings, e.g. between 100 - 140 cd/m^2 might be good settings.
Moreover, depending on the final output of the photografic material, one might choose different settings. Since printed material has noticeably lower brightness than screens, choosing a relatively low brightness allows one to judge how printed output will look much better. At same time if the output medium is the web, a higher brightness might be more advisable since the end-user will look at them probably on screens with a higher brightness setting [than 120 cd/m^2].
Now, to the Huey. It does not have any brightness settings (heck, even the gamma and colour temperature settings are not very explicit). But it does have an automatic brightness adjustment. I guess this simply selects different cd/m^2 values depending on the amount of ambient light. Which ones they are, nobody knows. One would have to measure it.
What I am not so sure about is the following:
- Does it matter at what brightness level the screen is set to (via the hardware controls on the screen) before I start the calibration with the Huey?
- Does the ambient light adjustment of the Huey also affect colour? I guess not, color is fixed by the 6500 K, or whatever setting [i.e. warm, cold, etc.] one is choosing.
