In lightroom (and I imagine PS camera raw), what is the difference between the exposure slider and the brightness slider?
I expect that exposure is just a linear multiplier on the raw value, the slope of the line as it were, and the blacks slider is the "b" of the y=mx+b of a linear conversion from raw to final. I can't figure out what the brightness slider does. It's odd that in library mode, if you click on brightness twice, it seems to go to a default of 0, while in develop mode, clicking on it twice seems to set it to 50. I'd actually be interested in seeing a simple description of the mathematical transforms of each of the lightroom exposure sliders, so I could better understand what I'm actually doing when I twiddle and frob them. -- Larry Colen [email protected] sent from i4est -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
