Quote:
phaseshift wrote:
 • What sort of spectrometer are you using or do you prefer? It looks like a PC integrated unit and I am interested in picking up a new one. We have a Minolta which is used by our QA group now and I do not want to pull it out of service and go through a painful calibration and standards validation session on existing products. Also, I am not all that tickled with the thing to be honest. I hear that there are better, less expensive computer based color spectrometry sets out there now.
• Does anyone know of a good source for RGB or Munsell shades by number as compared to some of the more popular screens in the market – OR – as defined by those in the know to be “good” targets?
• There still seems to be a lot of confusion about accurately measuring screen gain which has lead to some rather heated debates within the project group. I have looked all over the web and high and low for a good resource about this and can not find anything I really trust. Do any of you know where I can find a good description of the equipment and methods required for accurate and meaningful gain measurements? |
- A Gretag Macbeth i1pro
- Just check the stickies above. There's a master list of everything that has been measured
here.
- You need a block of magnesium carbonate and either a spot meter or the i1. Some type of goniometer wouldn't be a bad idea either for determining the exact angles. The magnesium carbonate would be the reference material with a gain of 1 and you would use those values to figure the gain of your screen material. I have everything I need to do it except for a goniometer. And unfortunately spring has sprung here and my time is spent outside more than in lately. As soon as I get caught up though I fully intend to get this completely figured out.