Archived posting to the Leica Users Group, 2012/01/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I have wondered what the difference is between exposure and brightness controls. Thanks. On Jan 22, 2012, at 4:57 PM, Richard Man wrote: > Correct: under LR3 and previous, "exposure" adds light to the entire image, > "brightness" moves the midpoint. > > More or less. > > On Sun, Jan 22, 2012 at 2:48 PM, Herbert Kanner <kanner at acm.org> wrote: > >> I'm NOT using it. I'm just experimenting with its new features in order to >> understand them, especially to understand them well enough to know whether >> I will want to upgrade. The crawling behavior of those sliders prevents >> understanding. >> >> Incidentally, there appears to be a contradiction in LR3. The exposure >> slider ostensibly correlates with a section called "exposure" in the >> histogram. But I find that it affects exposure over the entire histogram >> range, whereas the brightness slider principally affects >> exposure/brightness in the mid range. >> >> Herb >> >> >> >> Herbert, may I suggest that you use LR3 if you are not already using it? >>> 3.6 is a stable release and works well. LR4 will probably not come out >>> for >>> at least another 4-6 months. Let the other trailblazers find the bugs :-) >>> >>> On Sun, Jan 22, 2012 at 1:27 PM, Herbert Kanner <kanner at acm.org> >>> wrote: >>> >>>> I'm running LR4 on an iMac whose OS is Snow Leopard. While most sliders >>>> work fine, the four critical ones: shadows, hilights, etc. are so >>> sticky >>>> that they are almost useless if the exercise is to look at the picture >>> or >>>> the histogram and watch what they do. >>>> >>>> Is this the behavior of the first release, or is something funny going >>> on >>>> in my machine? I've checked the amount of free memory in Activity >>> Monitor, >>>> and it is certainly adequate: mucho gigabytes. >>>> -- >>>> Herbert Kanner >>>> kanner at acm.org >>>> 650-326-8204 >>>> >>>> Question authority and the authorities will question you. >>>> >>>> ______________________________****_________________ >>>> Leica Users Group. >>>> See >>> http://leica-users.org/****mailman/listinfo/lug<http://leica-users.org/**mailman/listinfo/lug> >>> <http://**leica-users.org/mailman/**listinfo/lug<http://leica-users.org/mailman/listinfo/lug>>for >>> >>> more information >>>> >>> >>> >>> >>> -- >>> // richard >>> <http://www.richardmanphoto.**com<http://www.richardmanphoto.com> >>>> >>> >>> ______________________________**_________________ >>> Leica Users Group. >>> See >>> http://leica-users.org/**mailman/listinfo/lug<http://leica-users.org/mailman/listinfo/lug>for >>> more information >>> >> >> -- >> Herbert Kanner >> kanner at acm.org >> 650-326-8204 >> >> Question authority and the authorities will question you. >> >> ______________________________**_________________ >> Leica Users Group. >> See >> http://leica-users.org/**mailman/listinfo/lug<http://leica-users.org/mailman/listinfo/lug>for >> more information >> > > > > -- > // richard <http://www.richardmanphoto.com> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information