so i have read the full article and i'm a little confused..
according to what it sais - " The point is, no specific cd/m2 target will necessary be correct without taking the print viewing conditions into account" -
so luminance values set for the monitor calibration are only a reference to the print?!
is there no "correct" luminance to use in the calibration process in order to achieve "correct" situation where i will look at an image and know that it correct exposed?
Just do a simple physics test. Turn on a desk lamp, 60 watt bulb or any isolated lamp around the house with no other lights on and view a print under it. First have the print 1 foot from the light source then slowly pull it away and notice how the overall luminance and contrast changes.
The correct luminance for viewing that print as well as setting your display by will have to match with which ever dimness level that print viewed at either 1 foot or farther away.
Pick a display luminance level that you are comfortable looking at while editing or viewing your images. Don't work in a completely pitch black dark room with no lights on. Have some kind of light source around preferably neutral looking (there's many to choose from) to balance white luminance of your display so you don't get eye strain.
It's that simple. This isn't rocket science.