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post #721 of 806 Old 11-28-2018, 08:02 AM
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Quote:
Originally Posted by Dominic Chan View Post
Autocal is not perfect, but definitely fixes gamma droop. The only other option is to “hand craft” 3 custom curves, assuming 3 is enough in your setup to cover SDRas well as HDR.
Noted , will try the auto cal and report back here , is there any manual calibration combination of s/w and hardware combo that you can recommend in small budget for beginners like me to tinker with

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post #722 of 806 Old 11-28-2018, 08:45 AM
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Noted , will try the auto cal and report back here , is there any manual calibration combination of s/w and hardware combo that you can recommend in small budget for beginners like me to tinker with
For “manual” calibration I highly recommend HCFR. You can use it with the Spyder5, or i1Display3 if you want more accurate colours.
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post #723 of 806 Old 11-28-2018, 11:28 PM
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For “manual” calibration I highly recommend HCFR. You can use it with the Spyder5, or i1Display3 if you want more accurate colours.
Thanks once again Dominic , is this the correct model X-rite i1 Display Pro EODIS3 (2018 Edition) as thats what is available here , in the meanwhile will download HCFR and familiarize myself with work flow and see if i can manage it


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post #724 of 806 Old 12-02-2018, 02:24 AM
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Think age is catching up with me , as in 2014 i had purchased the calman 5 and the c6 and calibrated my then 1080p projector and completely forgot about it.

I revisited the calman 5 its version still is the 2014 as i had not updated , but this version has colorspace target for
1) D65,HD Rec.709 and 2) ITU-R Rec 2020 among others but non for HDR (which is a non isssue for me as of now as )


Since i have the calman S/ware and if i purchase the i1 Display Pro EODIS3 hopefully it will be compatible would this be a better way to calibrate as against the Jvc autocal with the spyder5?

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post #725 of 806 Old 12-02-2018, 04:39 PM
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Originally Posted by faiz View Post
Think age is catching up with me , as in 2014 i had purchased the calman 5 and the c6 and calibrated my then 1080p projector and completely forgot about it.

I revisited the calman 5 its version still is the 2014 as i had not updated , but this version has colorspace target for
1) D65,HD Rec.709 and 2) ITU-R Rec 2020 among others but non for HDR (which is a non isssue for me as of now as )


Since i have the calman S/ware and if i purchase the i1 Display Pro EODIS3 hopefully it will be compatible would this be a better way to calibrate as against the Jvc autocal with the spyder5?
If you already have C6 you don’t need to buy the i1D3. They are essentially the same meter.
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post #726 of 806 Old 12-02-2018, 07:11 PM
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If you already have C6 you don’t need to buy the i1D3. They are essentially the same meter.
It been 4 years , I was just concerned that there may be Color drift in the c6 and me being a relative novice in video calibration , wanted to lower the chance of things going down side due to a hardware issue

Last edited by faiz; 12-02-2018 at 07:17 PM.
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post #727 of 806 Old 12-02-2018, 07:20 PM
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It been 4 years , I was just concerned that there may be Color drift in the c6 and me being a relative novice in video calibration , wanted to lower the chance of things going down side due to a hardware issue
It’s your money.
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post #728 of 806 Old 12-02-2018, 07:28 PM
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It’s your money.
Thanks Dominic , I will give it a go with the c6 and see how it turns out
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post #729 of 806 Old 12-03-2018, 12:27 AM
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Dominic,

Going back to my red tint in black issue with the quality 33 steps, is this fairly common or could my Spyder be off ?.
I ran colour and gamma for HDR without filter last week and having watched a couple of uhd blu rays I think it looks great to the point I don't see a need to check anything with my i1D3.

What do you think ?.

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post #730 of 806 Old 12-03-2018, 06:15 AM
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Originally Posted by panman40 View Post
Dominic,

Going back to my red tint in black issue with the quality 33 steps, is this fairly common or could my Spyder be off ?.
I ran colour and gamma for HDR without filter last week and having watched a couple of uhd blu rays I think it looks great to the point I don't see a need to check anything with my i1D3.

What do you think ?.
It’s hard to generalize. If 20 steps give you good results there no reason to use 33 steps.

HDR black clipping patterns (around code level 100 and below) can often reveal calibration issues.
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post #731 of 806 Old 12-03-2018, 06:21 AM
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Originally Posted by panman40 View Post
Dominic,

Going back to my red tint in black issue with the quality 33 steps, is this fairly common or could my Spyder be off ?.
I ran colour and gamma for HDR without filter last week and having watched a couple of uhd blu rays I think it looks great to the point I don't see a need to check anything with my i1D3.

What do you think ?.
It’s hard to generalize. If 20 steps give you good results there no reason to use 33 steps.

HDR black clipping patterns (around code level 100 and below) can often reveal calibration issues.
Ok thanks, I do seem to have reasonable results so may just leave it alone.

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post #732 of 806 Old 12-10-2018, 04:12 PM
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Hi Dominic



I managed to do the autocal with the spyder5 ,my calibration with the standard profile the gamma was pretty good however when i try to calibrate the HDR profile i get a bad gamma curve, i have done this a few time with the same results ,have attached a pic herein below .


also i have noticed that my unit displays a lot of green in the projected image this is pre and post the calibration , is there some way to check if my unit is faulty for the excessive green , or any solution for the same



I have done around 40 hours on the lamps, and have followed the instructions properly for the autocal
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post #733 of 806 Old 12-10-2018, 04:47 PM
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Quote:
Originally Posted by faiz View Post
I managed to do the autocal with the spyder5 ,my calibration with the standard profile the gamma was pretty good however when i try to calibrate the HDR profile i get a bad gamma curve, i have done this a few time with the same results ,have attached a pic herein below .
Why do you think it’s a bad gamma curve? ST2084 is supposed to look like that.
You can temporarily switch HDR Picture Mode to use Normal gamma for the calibration; that way it’s easier to see if the calibration is successful (straight line for gamma).

Quote:
also i have noticed that my unit displays a lot of green in the projected image this is pre and post the calibration , is there some way to check if my unit is faulty for the excessive green , or any solution for the same
Since you have CalMAN it should be easy to check that out using the i1D3.
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post #734 of 806 Old 12-10-2018, 05:36 PM
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Originally Posted by Dominic Chan View Post
Why do you think it’s a bad gamma curve? ST2084 is supposed to look like that.
You can temporarily switch HDR Picture Mode to use Normal gamma for the calibration; that way it’s easier to see if the calibration is successful (straight line for gamma).


Since you have CalMAN it should be easy to check that out using the i1D3.
Thank you Dominic for clearing that out for me , is it ok that I used 2.2 gamma for the hdr calibration ,
I will be getting my i1d3 next week , will try and see what I can achieve with it .

But you have been great help
Thank you

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post #735 of 806 Old 12-12-2018, 10:11 AM
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Hi dominic,


Sorry to bother you , but i have just re calibrated and in both HDR and Natural while the calibration was on i noticed that in both the calibration the color level signal the value of Z was 0, attached herein bellow is the pic as well as the final result of the natural mode calibration.


Is this normal , if not what could be the issue any input from you will be much appreciated

Thanks
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post #736 of 806 Old 12-12-2018, 02:37 PM
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Originally Posted by faiz View Post
Hi dominic,


Sorry to bother you , but i have just re calibrated and in both HDR and Natural while the calibration was on i noticed that in both the calibration the color level signal the value of Z was 0, attached herein bellow is the pic as well as the final result of the natural mode calibration.


Is this normal , if not what could be the issue any input from you will be much appreciated

Thanks
I think a zero value for Z is normal, especially when the results are fine.

Last edited by Dominic Chan; 12-12-2018 at 03:08 PM.
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post #737 of 806 Old 12-12-2018, 02:56 PM
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Thanks Dominic

Also when I changed the position of the probe I started getting some value on the Z for the red Color though a very low number

Tonight I noticed that when the spyder was placed in a way that it’s shadow fell in the mid point centre of the screen , PQ is the best I have seen

I get a lot of green tint in HDR and it becomes even more stronger in the darker screens

I hv mission impossible fallout. , the punisher 2 ,Marrawbone, mother in UHD and they all display the above mention characteristic

If anyone here that have the same movies could pls confirm this

Thanks

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post #738 of 806 Old 12-12-2018, 03:10 PM
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I get a lot of green tint in HDR and it becomes even more stronger in the darker screens
Does that show in the CalMAN grey scale?
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post #739 of 806 Old 12-13-2018, 11:20 AM
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Hopefully will receive my i1d3 by the 20th post which I will update and revert
Thanks

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post #740 of 806 Old 12-13-2018, 02:04 PM
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Hopefully will receive my i1d3 by the 20th post which I will update and revert
Thanks
Have you not tried CalMAN with the C6?
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post #741 of 806 Old 12-28-2018, 11:03 AM
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Sorry Dominic for the late response but had met with a small accident and broke my toe , however was able to try the calibration today with the new i1d3 and Calman set to REC 709 and continuously hit a very abnormal low read of the gamma 0.39 at 60% and as well as on the 10 point 10% step 10-100% I did this a few times with similiar abnormal results

I was using the “Natutal mode “ and it’s default settings

Have attached the pics, also have attached the pic of the actual grey 60% pattern which looks very greenish as well as a still pic from the movie “the greatest showman”

Just to make sure the i1d3 or my calbration set up was not faulty , I connected my standby projector and got normal gamma read after which I did a factory reset on the JVC , and when connected it back to the Jvc I got the similiar abnormal readings

Any idea what could be wrong is it a hardware or software issue , please do share your thoughts

Thanks
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post #742 of 806 Old 12-28-2018, 12:40 PM
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Originally Posted by faiz View Post
Sorry Dominic for the late response but had met with a small accident and broke my toe , however was able to try the calibration today with the new i1d3 and Calman set to REC 709 and continuously hit a very abnormal low read of the gamma 0.39 at 60% and as well as on the 10 point 10% step 10-100% I did this a few times with similiar abnormal results
Sorry but I'm not familiar with CalMAN. I was only asking about it to see if it confirmed the greenish tint that you noticed.
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post #743 of 806 Old 12-28-2018, 07:34 PM
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The next measurement was of the green colour space and it was way off towards the left from the green target box after which point I did not continue , should I post this issue in a new thread as it’s not jvc autocal issue

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post #744 of 806 Old 12-31-2018, 05:25 PM
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I'm planning on getting one of the new JVC native 4k projectors, and have been reading the manuals for the Auto Cal software. I'm afraid I have a few questions, which are probably stupid newbie questions, but for someone not familiar with calibration (I usually adjust my displays with Avia or the AVSHD 709 disk), the JVC manual leaves a lot to be desired. What I mean is, it assumes a certain mount of knowledge, whereas one or two sentences or a brief paragraph introduction in some parts of the manual would help, I think.

Anyway, in reading the latest manual, which I think is for version 11 of the software (and the versions don't seem to have changed much recently), I'm good until I get to around page 10 or so where it talks about creating a Color Profile, and then about Gamma Adjustment.

What would be the purpose of creating your own color profile? Why wouldn’t you use one of the color profiles that are pre-set for the picture mode?

If you create and import a color profile that you created, do you need to run the calibration again for image quality and distortions – since when you run the calibration, one of the things you do is select a color profile?

And what is the purpose of the gamma adjustment procedure? When would you want to use it? Doesn't the auto-cal procedure fix issues with the gamma?

Thanks in advance for any help.

Last edited by smitty; 01-03-2019 at 08:26 AM.
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post #745 of 806 Old 01-03-2019, 09:09 AM
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What would be the purpose of creating your own color profile? Why wouldn’t you use one of the color profiles that are pre-set for the picture mode?
With the native 4k models most people would not need to create custom profiles. Surprising, up to and including the latest e-shift models Rec709 was not included as a preset profile.
Custom profiles have also been used to fine-tune the colour accuracy (to correct the inaccuracies of the Spyder), but most users do not get into that.
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If you create and import a color profile that you created, do you need to run the calibration again for image quality and distortions – since when you run the calibration, one of the things you do is select a color profile?
Theoretically yes, although some colour profiles share the same calibration.
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And what is the purpose of the gamma adjustment procedure? When would you want to use it? Doesn't the auto-cal procedure fix issues with the gamma?
Again, that’s for fine-tuning, to reduce any residual errors from autocal.
For further details you can read the 4000 posts here
https://www.avsforum.com/forum/24-di...500-rs600.html

Last edited by Dominic Chan; 01-03-2019 at 09:18 AM.
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post #746 of 806 Old 01-03-2019, 10:12 AM
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With the native 4k models most people would not need to create custom profiles. Surprising, up to and including the latest e-shift models Rec709 was not included as a preset profile.
Custom profiles have also been used to fine-tune the colour accuracy (to correct the inaccuracies of the Spyder), but most users do not get into that.

Theoretically yes, although some colour profiles share the same calibration.

Again, that’s for fine-tuning, to reduce any residual errors from autocal.
For further details you can read the 4000 posts here
https://www.avsforum.com/forum/24-di...500-rs600.html
Thanks Dominic. i'll start reading.
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post #747 of 806 Old 01-03-2019, 10:57 AM
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Thanks Dominic. i'll start reading.
I was kidding about the 4000 posts. The main ones are on the first page.
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post #748 of 806 Old 01-03-2019, 11:17 AM
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I was kidding about the 4000 posts. The main ones are on the first page.
I have, in fact, read quite a few pages already of this thread and some other calibration threads just to try to obtain some general knowledge. I've even read some of the manuals for things like ChromaPure. The problem is that most of the threads and posts, as well as the JVC Auto-Cal manual and other manuals, assume a certain amount of knowledge.

It's like, as an attorney, if I'm talking to another attorney, we speak in a certain language and have a base of knowledge that we both use as a foundation. So we can speak in shortcuts and skip some basic stuff because we know what we're talking about. You see the same kinds of things on threads like these, and quite naturally so.

It's too bad that there is not a basic "beginner's calibration thread" with basic information about gamma, and color profiles, and white points, etc. for folks just trying to understand what you guys do and what you're talking about.

Anyway, I appreciate your response to my question.
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post #749 of 806 Old 01-03-2019, 01:40 PM
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Originally Posted by smitty View Post
It's too bad that there is not a basic "beginner's calibration thread" with basic information about gamma, and color profiles, and white points, etc. for folks just trying to understand what you guys do and what you're talking about.
You may find this useful:
http://www.curtpalme.com/forum/viewtopic.php?t=10457

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Anyway, I appreciate your response to my question.
I decided to respond after you reworded your question
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post #750 of 806 Old 01-03-2019, 06:55 PM
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Originally Posted by Dominic Chan View Post
Thanks. I started reading that a couple of weeks ago, but then saw there was an updated thread, and I jumped to that one. But the old thread does indeed have a good deal of helpful basic information that isn't in the updated thread.
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