Originally Posted by curlyjive
I actually have it dialed in pretty well. All de's under 2 and gamma as flat as I have been able to get....a little too high on the low end, and little too low at the high end, but still not losing shadow detail or hurting contrast. I used user 1 and the normal mode and the gamut is pretty good all dots in the squares, maybe not perfectly centered but darn close. Image is fantastic, no tint at all.....I just meant in order to get it that dialed in I had to cut green a lot.
Did you check saturation tracking, this is the most problematic thing on the JVC, it usually yields worse results at different sat points. You must have gotten a lucky sample for color, yah I imagine there is some variance to the gamuts on these. On mine, the green gamut is over-saturated and the blue luminance can never be fixed correctly. By eye it always appears there is too much red or green and not enough blue, no matter what I do, if I fight for too perfect for RED or GREEN balance, then blue gets hurt worse, so I have to concede things.
Originally Posted by fleaman
Isn't the other issue with JVC's how quickly it goes out of calibration, compared to other brands/techs?
Especially the gamma?
Yes, the gamma is a pain, that is why some have bought the Chromapure Auto-Cal packages for the Lumagen.
If comparing to projectors 5+ years ago, the JVC has ok color, it's not as bad as some projectors used to be. However, when A/B'n to modern projectors, like the Benq, Viewsonic, or Mits, then you can clearly see the JVC has color issues no matter how much calibration you do. The gamut cannot be calibrated because it does not have a CMS, and a Lumagen can only fix certain aspects because even the wide gamut is not completely over-saturated at all sat tracking points, so you win some you lose some when it comes to the color of the JVC. More importantly, out of all the recent projectors I have owned, the JVC has one of the worst OOTB color as far as accuracy goes. You really have to crank green down and by that time you lose a lot of lumens.
The JVC color looks ok in many bright scenes, it's mainly the evening scenes that cause me the most problems.
My lamp is actually doing fairly ok at 900 hours for uncalibrated lumens, a little more than a normal lamp, but the main issue is if I calibrate I lose a lot of lumens now.