Archived posting to the Leica Users Group, 2007/06/01
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hoppy, Thanks for the introduction to a level of finesse that I will choose to ignore for now. For my picture work, it makes no sense to complicate my efforts to that extent. I worked for too many years with a few engineers who would pursue the ultimate goal to all ends, but could never accomplish the necessary tasks to succeed in the real world. I hope I never have to get involved to that extent again. Sorry for raving. Thanks for the information. Jim Nichols Tullahoma, TN USA ----- Original Message ----- From: "G Hopkinson" <hoppyman@bigpond.net.au> To: "'Leica Users Group'" <lug@leica-users.org> Sent: Friday, June 01, 2007 6:56 PM Subject: RE: [Leica] IMG:Friday Flower-Begonia > Jim the basics are: > You start by selecting the desired colour temperature. 6500K is widely > accepted for photo-editing. > The device measures the luminance (brightness) of each channel (RGB) and > how it reproduces known shades of each colour. Contrast is > typically set high. The profile generated is a set of corrections that > adjust what your VIDEO card outputs to the monitor. So the > software sends say, red 127, green 127, blue 127 ((neutral grey) and the > device measures what the monitor reproduces. You then > adjust the channels via the monitor controls until the balance is as close > to correct as you can get. Luminance is adjusted > separately. Depending on how the balance is affected (i.e. may not be > linear) as you fiddle with the RGB gain you may then have to > revisit the balance. > > Usually the only true hardware control on an LCD is the brightness. The > exceptions to that are the top models in the Eizo range > which have true adjustment of the look up table in the monitor itself and > also higher bit tonal ranges to choose from (i.e. smoother > gradations). However these cost a young fortune. They are the Leica APO > ASPH lenses of the monitor world. > When you computer is started up the profile is loaded and you can see, > distinctly, the adjustment as that happens. > LCDS also are usually much brighter than CRTs and consequently their > recommended luminance range is higher. However I do find that > mine still works well for soft proofing. > > The other point raised in this thread which is very valid is that you need > to consider what the intended use of the image is. What > is best maybe for WOW factor on a screen may not be reproducible on a > print (contingent on your process there, of course). > > I should repeat too, after all of that waffle, that your pic is gorgeous > and a worthy member of the Friday Flower galleries! > > Cheers > Hoppy > > -----Original Message----- > Subject: Re: [Leica] IMG:Friday Flower-Begonia > > Hoppy, > > For these old eyes, the monitor settings as I have them work out pretty > good. I think I will leave them as-is. I appreciate your help. I agree > that I must be careful not to oversaturate when making PS adjustments. > Otherwise, the detail in the saturated areas disappears. > Out of curiosity, how do the Spyder devices work? Do they provide a > calibration signal that can be fed to the monitor? > > Jim Nichols > Tullahoma, TN USA > ----- Original Message ----- > From: "G Hopkinson" <hoppyman@bigpond.net.au> > To: "'Leica Users Group'" <lug@leica-users.org> > Sent: Friday, June 01, 2007 5:40 PM > Subject: RE: [Leica] IMG:Friday Flower-Begonia > > >> Jim, I just opened your pic in PS and had a look at the levels etc. In >> fact the blacks are clipped except for in the red and the >> highlights are fine. As you have shown it is exactly how it should be for >> that picture, in my opinion. The very dark to black >> background is what showcases the flower's colour for me. >> I was referring to the intensity (saturation) of the flower's colour >> rather than the brightness. As we all know it is impossible to >> control the range of adjustments and viewing conditions that other folks >> have on their monitors. All you can do is manipulate the >> picture's tonal range so that it works for you and use/convert to the >> right colour space, which your picture is. >> >> For comparison, my Dell widescreen is set to zero percent brightness as >> part of the calibration and it is still about twenty percent >> too high for the luminance to be ideal for an LCD. If you are interested >> in pursuing that calibration, the XRITE Eye Ones are ideal, >> in my opinion. The cheaper Spyders are also good. I have both now and the >> Eye one does the best job. >> >> Without calibration, I would be turning your monitor brightness DOWN, not >> up. >> >> Cheers >> Hoppy >> >> -----Original Message----- >> Subject: Re: [Leica] IMG:Friday Flower-Begonia >> >> Hoppy, >> >> How about some help? I have had comments about the intensity of my >> images >> a >> couple of times. I can only judge the PS results as I see them on my own >> monitor, which is a Dell LCD with the brightness set at 30%. I seem to >> recall that you have a calibrated monitor. If you see my images as >> extremely bright, perhaps I need to raise the brightness of my monitor so >> that I will not damage the eyesight of my viewers. Got any suggestions? >> >> Jim Nichols >> Tullahoma, TN USA >> ----- Original Message ----- >> From: "G Hopkinson" <hoppyman@bigpond.net.au> >> To: "'Leica Users Group'" <lug@leica-users.org> >> Sent: Friday, June 01, 2007 2:22 AM >> Subject: RE: [Leica] IMG:Friday Flower-Begonia >> >> >>> Jim, do the squirrels wear sunglasses!! That picture nearly seared my >>> retinas when I opened it. Gorgeous colour, the dark background >>> is very effective, as well. >>> >>> Cheers >>> Hoppy >>> >>> Subject: [Leica] IMG:Friday Flower-Begonia >>> >>> My wife's patio flowers have to endure the activities of the backyard >>> grey >>> squirrels, who like to bury acorns in the containers. >>> Before the flowers are gone, I felt that I should capture one her >>> begonias. >>> >>> Comments/critiques welcomed. >>> >>> http://gallery.leica-users.org/v/OldNick/Begonia.jpg.html >>> >>> >>> Jim Nichols >>> Tullahoma, TN USA >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >>> >>> >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >>> >> >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >