Originally Posted by TomHuffman
You have yet to offer any reason for why one should not use the Offset control, other than it should not be used to excess, which is generally true for most controls.
I can post a link to a german specialist who talked a lot about the offset controllers. But it's all in german language and I don't know if e.g google translation will help. That guy programmed his own video equalizer, so I think he is an expert.
I would suggest that if you wish to continue to participate in this thread that you resist the temptation to assume without any evidence or provocation that anyone who disagrees with you is simply lazy or uninformed.
That are your words, not mine
I have calibrated several HD350, X3 and X30. So I know a lot about all of that devices. I have used different calibration technologies and the best way for me is to use the GAIN-controllers and the gamma equalizer. I also know a lot of german and english customers of the JVC projectors who exactly use the same procedure like myself. The results were absoutely perfect: deltaE < 0.8 with CalMAN 4 autocal and WITHOUT manual adjustments !
Because of "lazy" or "uninformed": I have seen a lot of calibrated JVC projectors and it's settings. MOST of them were calibrated ONLY at GAIN (80 IRE) and OFFSET (30 IRE). The gamma equalizer wasn't used although you can achieve perfect results with that. Some of that calibrators set the OFFSET to +12 or +15 ! Others to -20 or -25. Again: all of them are so called "professional calibrators" ! I also talked to some of them and asked why they don't use the gamma equalizer. The answers:
1. What's that ?
2. I don't know how to use it
3. I am used to calibrate with OFFSET and GAIN
4. It's easier and faster to use GAIN and OFFSET instead of the gamma equalizer
5. Time = money
IMHO I can expect a nearly perfect calibration if I spend 200€ for it. And it's a joke if that calibrator only adjusts GAIN and OFFSET for such a lot of money.