Custom Curves Quick DIY
This guide encompasses every step you need to load custom curves onto your projector and get rocking with 4K HDR. All of this is reversible and none of it is permanent, so no worries. A custom curve will significantly increase the quality of your HDR content and it only takes about 30 minutes to follow the instructions below for the first time.
In step 3 I link to a couple different curves on this forum to download. Feel free to choose your own if you find one, there is no harm in trying different curves, the projector has 3 slots for custom curves and you can overwrite them as many times as you want. You can also make your own but that process is a bit different. More information here
. If you are fresh to 4K now is the time to replace your HDMI cables or you will probably have problems, more information here
. I have links to posts in my sig for a reason, look at them.
This is the quick and dirty guide and will get you what you want, quickly:
1) This is the JVC Calibration Software
you want to import premade gamma curves, you can also use it later to do color calibration if you want. Install this software on a PC connected to the same network as your projector. Do this first. Connect your projector to your network, check the IP address of your projector in the settings menu and enter it into the settings screen (the gear) on the software and click 'check' to verify connection. (The PDF in step 4 explains this in more detail if you need it)
2) Download the BT2020 color profile from here
. Its under step 2. (You might already have this loaded on your projector)
3) Download and try some curves from this post (download via his Dropbox link)
(Thanks Javs) or this post
(Thanks Manni) or this post
(Thanks Dominic). Full credit to Javs, Manni and Dominic on these curves, I did not make them, they did. (Or feel free to use any other curve you find on the forum)
4) Use these Import Procedure
directions to load the BT2020 profile you downloaded in step 2. (If you have trouble connecting your PC to your projector, follow these steps
5) Use the same process as step 4 to load the custom gamma curve, but you select 'gamma' from the pull-down menu on the import/export screen instead of 'color profile'. If you really want brightness, I'd start with Javs "Javs 1200nit V3" gamma curve inside the "Autocal Versions" folder in his dropbox link and/or Manni's "Manni-HDR10-BC1K" gamma curve in his zip folder into and/or "Gamma3_30_Adjusted" into Custom 3 from Dominic. (Or feel free to use any other curve you find on the forum and load them to whichever custom slot you choose)
3/4/5 alternate) You can also load a curve or two using the ARVE tool and JAVS curves. This process is a bit more complicated but his recent V3 curves are very good. Curves and steps here
. Javs has also provided the regular curves to import in step 4 but the Arve tool method will technically yield a slightly better result if you like his curves. (I personally saw no difference between the loaded curve and this method but it is ‘technically’ bettter
6) Okay all done on the PC for now. Go to your projector and stick in a 4K disc get it loaded up so the movie is playing.
7) Now we're going to set up your picture settings for HDR movies on your projector. Press a User Mode on the remote (I have a few different profiles set up so my User 1 is for HD, User 2 is for HDR and User 3 is for 3D). Choose and press a user mode that makes sense to you, then go into the projector Picture Adjust Menu and change the color profile to BT.2020. Change Gamma to Custom 1 (or where you loaded the custom gamma from step 5), then right below that in the gamma screen, change correction value to Import. (Very important to select Import, otherwise it won't load the profile you imported in step 5). I'd also suggest turning on High Lamp, CMD Off, Auto Iris off, Iris Manual on 0 and Clear Black Low. (Iris, CMD & Clear Black is a preference though).
8) Going forward, once you put in a 4K movie, all you need to do is choose that user mode and it will recall all the settings from step 7. Then once the movie is actually playing, you just need to hit the gamma button to change from Gamma D to Custom 1 (the projector will always default to Gamma D). You can also rename the Picture Mode from "User 1, 2 or 3" to "HDR" or something to make it easier for you.
That's it. Basically, in recap, load in the BT2020 and custom gamma profile with the software, choose a user mode on the remote and select the BT2020 and custom gamma profiles.
All this will take about 20-30 minutes the first time. Its pretty quick. You can try different gamma curves in slot 2 & 3 also and overwrite them all as you see fit. Once you get the hang of it you will only spend like 2 minutes loading a gamma profile. REMEMBER, be CERTAIN the gamma correction value is set to IMPORT on the projector, otherwise it's just gamma normal.