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Wow. It's very rare indeed that I get an answer so complete that it begs no follow-up question from me. I really appreciate your help, Todd > From: CDTobie@aol.com > Date: Wed, 25 Oct 2000 09:13:52 EDT > To: email@example.com > Cc: firstname.lastname@example.org > Subject: Re: monitor question > > In a message dated 10/24/00 7:52:18 PM, email@example.com writes: > >> Does the above contradict what you wrote to me yesterday below? I take >> it >> there's a tricky workaround that I'd like to know but which won't be in >> the >> manual. Would you elaborate, please? Also, I currently have an order in >> with >> Color Vision for their Bundle which includes the Spyder, Photocal, and >> Profiler RGB; would it be worth spending an extra $200 to upgrade from >> PhotoCal to OptiCal? > > I just reread both, and find no conflict, but then I wrote them, so might not > notice what you meant. To state it again in one piece: > > The LaCie hardware is an inexpensive puck which they are buying from a third > party to include with their system. The puck itself is less desirable than > the ColorVision Monitor Spyder. The system that LaCie uses to control their > monitor with the puck will include precalibration RG&B gun adjustments, which > should be automatic when done with their software. There is no magic > involved, and I don't see how the result (while it may be a bit more > convenient) could be any more effective than that offered by OptiCal or > PhotoCal, where you adjust this with the front panel controls, but using the > calibrator for feedback on your results. Note that the price of the LaCie > system is *considerably* less convenient... > > If you calibrate with OptiCal, the current version will include PreCal as a > seperate utility to allow precalibration gun adjustments. If you use > PhotoCal, then this utility is built in (as the comparable feature is with > ProveIt). So while there is a clear and intended way to *just* balance the > guns with OptiCal, with the other two, that stage would need to be done as if > you were running a full calibration process. But once you had the guns > balanced, since that portion of the process is done to the monitor itself, > not to color corrections sent to the video card, it would hardly matter if > you actually completed to calibration, or if you used the resulting profile; > the RGB guns of your monitor would still be balanced. The only wild card in > the deck is that you may have adjusted the blakc and white points (or not) in > the process, and that there is some difference between how gun balancing is > done among programs. Sometimes you are not just balancing the three, but also > setting the combination of the three to the proper lumenance level at the > same time. With others you balance them at a maximum, and the lumen level is > set seperately. Since my theory (for what its worth) is that I want to set > the lumen level with the gun controls, to leave as little adjustment to the > video card or brightness/contrast controls as possible, I always target the > lumen level while adjusting the guns, whether the software requests it or not. > > Regarding which ColorVision monitor profiler to buy... thats a tricky one. > There are still some core differences between how the two work. Most notably > OptiCal calibrates on a gray balance of the three guns, PhotoCal runs the > three seperately. OptiCal also sets both white and black points with the > calibrator, instead of leaving one for you to do visually as PhotoCal does. > In theory you should get better gray balance out of the OptiCal method; but > all I can say is that I see a difference between the two, and that to my eye > the graycalc method appears more neutral. Which is technically more accurate > would require some pretty expensive equipment to determine. There are also a > few advanced features to OptiCal that might be of interest to you, such as > being able to choose your own white points and gamma, rather than just having > the standard g1.8/g2.2 and 5000k/6500k choices in PhotoCal. So if you need to > adjust your monitor whitepoint to match your lighting booth, or some other > fixed element, you can with OptiCal. And the target system in OptiCal allows > you to use the same standard for all monitors in your office. I also expect > there will be some cool new features available in OptiCal before too long. > PhotoCal, on the other hand, may adopt more of the core systems now in > OptiCal, so that the distinction will be based more on options and controls, > rather than core methodology. > > Many solo users with medium priced monitors are quite happy with PhotoCal. If > this proves not to be the case, or a new killer feature gets added to OptiCal > down the line, you can still upgrade then. There is currently no price > penalty (unless its the shipping charges) for upgrading, versus buying at > once. > > C. David Tobie > Design Cooperative > CDTobie@designcoop.com > - Turn off HTML mail features. Keep quoted material short. Use accurate subject lines. http://www.leben.com/lists for list instructions.
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