Re: Equivalent of "opening 1 or more stop" in post processing?

peter wrote:
In photoshop if you want to approximate the effect of increasing exposure by
1 or more stops, do you adjust the contrast alone, or gamma as well? If you
have to adjust gamma, then what is the formula?



I'm afraid I don't know the formula, but I think it's better to do this
via the histogram anyways. Then you are not relying on the brightness
of the particular monitor. (I use the "Levels" dialog in gimp, whether
photoshop calls it by the same name I don't know.)
.