Note: For models with Gamma D (RS400/500/600; x550/x750/x950) see the recommended settings here:
The RS420 added HDR Picture Mode with ST2084 gamma, which is much better than Gamma D on the RS400. However, depending on your screen size, the default settings may not be optimal. Custom curves can provide a big improvement, but if you’re not ready to get into that, here are some suggested settings grouped by screen size and mastering nits.
These are based on my own measurements done on the RS420 (x570), trying to match custom curves as closely as achievable using the 3 controls. They should work equally well on the RS520/620, and even the RSx40 assuming JVC did not change the ST.2084 implementation in the newer projectors. Feedbacks are welcome.
Different settings are recommended for the mastering nits; you can use the 2000-nit settting if you don’t want to be bothered with switching. Note: only change the White settings, not the individual R/G/B settings.
Note: if you’ve never run autocal, the projector most likely will have developed some “gamma droop”, in which case you may want to reduce Picture Tone and Dark Level by one click.
The three numbers listed are for Picture Tone, Dark Level, Bright Level respectively
(90” or less). You can get around 140 nits peak using a new bulb.
4000: 1, 5, -1
2000: 1, 5, 0
1000: 1, 5, 1
(100-120”), 100 nits peak
4000: 3, 7, -3
2000: 3, 7, -2
1000: 3, 7, 1
(>120”), 70 nits peak
4000: N/A (cannot avoid clipping while producing good brightness; just use the 2000 nit settings.).
2000: 10, 4, -7
1000: 10, 4, -5