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[Hoi]

I have my JVC NX7 and RS500 projectors calibrated (with Autocal) to BT2020 and I set the gamma on them to 2.4.

For JRVR, I have the screen gamut set to BT2020, Calibration Method Disabled, and not sure what to set the Gamma Processing to.  If I change it from Disabled to 2.4, the picture gets noticeably brighter, possibly clipping and washed out.  Disabled sometimes looks a little dark.  Is there an optimal/correct number that I should set the Gamma Processing to with my setup?

[mattkhan]

you should leave it as disabled

[Hendrik]

The only good way to correct the gamma response is with a calibration profile, an ICC profile or a 3DLUT. I have no experience with such projectors and AutoCal, but if thats something they can do, that might help.

Gamma can be a personal experience however depending on your room conditions and viewing preferences.

[mattkhan]

JVC's autocal performs 2 corrections, 1 for gamma and 1 for colour. If you've done this correctly then it's response should be pretty accurate. You can clean things up further with a 3dlut of course if you want to.

[Hoi]

Thanks guys!  I have a fully triple black velvet room and have been using madVR for awhile now.  After I do the JVC Autocal for color and gamma, I set the gamma in madVR to match my projector at 2.4.  I will disable the Gamma Processing and Calibration Method in JRVR.  I guess my next step is to learn how to create a 3DLUT.