Jun 7, 2013
About color lab color correction, in those days i'm watching a lot of tutorials about cause i'm trying to understand this new to me subject in a better way.
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While neutralizing color, correcting a photo in Lab by Curvas adj Layer, the default eye dropper values are:
Black- 0, Gray- 128, White- 255 RGB (0-54-100 Lab)
To prevent the possibility of out of gamma some tutorials suggest to change the above mentioned default values:
Black from 0 to 26 RGB (0-6 Lab), White from 255 to 243 RGB (0-96 Lab)
What about the middle eye dropper Gray? A few tutorials mention to chage the gray value too from 128 to 133 RGB (54-56Lab) while the majority never mention gray value, they tell about black and white never mentioning the gray value; what is your experience about?
The above mentioned "out of gamma problem" is mainly related to output printing or to screen displaying too?
Generally speaking I would like to receive some comment by you gurus about this very subject, while working in Lab, what about your Curvas adj Layer eye dropper values, do you change them or you leave them as default?