technoid

technoid

Lives in United States Ranch Santa Fe, CA, United States
Joined on Sep 30, 2004

technoid's recent activity

  • You are not only right in doubting that but in fact it will never happen. Turns out that a few sRGB colors are outside the MacAdam limits. These limits are physical ones because reflected light ...
  • Working in ProPhoto brings significant benefits. All printable colors will be available in ProPhoto. However, it is more important in ProPhoto to use soft proofing than in any other color space. Th ...
  • I've heard the Mark II has on board AtoDs so should be better dynamic range and extended ISO settings. WOuld like to see more info on that.
  • If your ICC profile is made for Illuminant A then comparing a colorchecker with tungsten would work though not as well as using daylight with a D50 profile, Colorchecker images, at least the one's ...
  • Just to add that when one is changing paper/profiles/printer one should always print a colorchecker image using absolute intent. The print should match an actual colorchecker when viewed with ...
  • Thanks for posting this. Fred's article is a really excellent backgrounder in light, color, and the science of color. For people that are trying to understand how printers work and to make and use ...
  • One way to distinguish flare from imager overload is to take several shots at different exposures. Keep the ISO the same as that can change the imager characteristics. Over and under expose. Flare ...
  • Agreed. That is the most likely correct choice. Wide gamut LED monitors tend to have similar primaries and color filters in the monitor so that is probably the best match colorimetrically. What ...
  • Works for me. OTOH, people are different and so is color vision. It's a fact that there is some variation about how people see a spectrum. Especially a spikey one. The exact same xyY CIE 76, one ...
  • They do. Your approach, with one small nit, will work very well. I just don't see why it is necessary to adjust for different papers if the profile's white point is correct and the application is ...
  • They can, but it's far less common than it is with OB laden papers. That said, the whole point of soft proofing to the paper color is to include the paper's off white tint and therefore the paper's ...
  • I disagree. Once you have set up soft proofing to match a viewing booth it should, effects of OBs excluded, match other papers of different tints. The non-OB case is dealt with quite well by ICC ...
  • It can, but that's largely due to OBs and how well they match the M0 (if the paper profile was generated using M0 - most are) and how well the M0 assumptions, tungsten I think) match the viewing ...
  • Yes! Thanks for the clarification. I had been under the impression that you were recommending setting the monitor's white point for different paper hues but, of course, once you have set the ...
  • Yep. Colorimeters, even when they don't correlate to color matching functions, are still capable of exceptional accuracy providing the RGB spectra of the monitor is known. Some manufacturers do ...
  • Generally, black body spectra are used for metameric testing below 5,000K and D50, D65, etc are used at or above a CCT of 5,000. Incandescent sources are very close to black bodies but the ...
  • Yep. People tend to forget that printers can't print all of sRGB. Even the many ink photo printers can't.  Adobe RGB covers the majority of what printers can do but it has a much larger gamut that ...
  • The printer color management process is separate from the monitor. You have a Colormunki Smile which should be fine for profiling the monitor but people often have difficulty with the color ...
  • Almost all RGB printers will map rgb(0,255,255) to a fully saturated cyan. The problem is that sRGB's (0,255,255) is a washed out cyan so the printer driver will turn the sRGB values to a less ...
  • Andrew's advice and info in those videos is probably the best there is on the net. And the price is right! This is how I measure and set light levels for illuminating prints and profiling monitors ...
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