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Official JVC RS20 / HD750 Calibration and CMS thread (NEW FIRMWARE V1.1)

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#1 ·
[EDIT 06-05-09: I have edited this first post to add some info from the first calibration thread and to make it a useful table of content to the new calibration and CMS thread]


This thread is a continuation of the original official RS20/hd750 calibration and CMS thread here http://www.avsforum.com/avs-vb/showt...8#post15314888 .


As the old calibration thread is mostly obsolete regarding CMS calibration with the arrival of the new firmware, we have decided to start afresh!


First things first, you need to upgrade the firmware before using the tips available in this thread.


A - NEW FIRMWARE

Where to get the firmware update (and common installation issues): http://www.avsforum.com/avs-vb/showt...8#post16355768

CAUTION: the new firmware erases ALL settings, so if you have general settings or calibration settings you wish to keep, make sure you make note of them before upgrading.


There is a wealth of knowledge regarding greyscale and gamma calibration in the original calibration thread. So here is a list of the most important posts which are still mostly relevant with the new firmware:


B - GREYSCALE: (from original thread, but info still relevant)

Before we get into CMS settings, the first thing to do is to get the best possible greyscale using only color temps adjustments, as this will make a huge difference with THX (and other presets). As already reported, some excellent tips are available here to achieve this from Mark Petersen Official JVC RS20 / HD750 Calibration and CMS thread - Page 22 - AVS Forum and also from Googer and others in the rest of the thread, here is one of Googer's great posts about gamma: http://www.avsforum.com/avs-vb/showt...#post15522847]


C - TWEAKED THX (from original thread, but info still relevant)

Once you have a custom color temp that gives you as perfect a greyscale as possible, the next step is to select the THX preset and enter the service mode (up/down/right/left/enter as fast as possible, either on the remote or the pj). [DISCLAIMER: be very careful when in this mode, you enter it at your own risks, if you make a mistake, don't blame me!]. You can then select a different color temp (for example the custom one you've just tweaked
), and this will be the color temp used by THX. You can now exit the service mode. This will make a HUGE difference to the ootb THX preset, as it will use a greyscale which is likely to be pretty good from 30 IRE up to 100 IRE, instead of a greyscale which is quite flat but off badly over the whole range, whether in normal or high lamp. More info about achieving this here Official JVC RS20 / HD750 Calibration and CMS thread - Page 29 - AVS Forum


If you like this "tweaked THX" preset, which is very close to rec709 - although slightly undersaturated for some - with a standard gamma, you can stop here and enjoy your PJ. If you do find it undersaturated, you can add anything from 1 to 12 - depending on your taste - to the general color control (I personally add 1-5 depending on source). That's it. Job done.


If you want to go one step further, and be able to use a custom gamma, sharpness and detail enhancement controls and adjust the gamut to Rec709, SMPTE-C or to your own taste, then have fun with the next section which is mostly about custom CMS settings...


D - CUSTOM SETTINGS, REPORTS and CALIBRATION TIPS with the NEW FIRMWARE


As members post reports/settings and calibration tips in the thread, I'll try to update this section with the most significant contributions (in chronological order).

Please let me know if I have forgotten something or if I get sloppy updating...


Reports from the pros:

GregR : http://www.avsforum.com/avs-vb/showt...7#post16360087

Tom Huffman: http://www.avsforum.com/avs-vb/showt...3#post16383023

Tom Huffman#2: http://www.avsforum.com/avs-vb/showt...9#post16431819

Settings:

Manni01 (1.4 gain screen): http://www.avsforum.com/avs-vb/showt...7#post16365507

JeffY: http://www.avsforum.com/avs-vb/showt...3#post16371803

Karrih: http://www.avsforum.com/avs-vb/showt...4#post16380924

008: http://www.avsforum.com/avs-vb/showt...9#post16383359

Nelson4u: http://www.avsforum.com/avs-vb/showt...7#post16388557

Ignace: http://www.avsforum.com/avs-vb/showt...7#post16389657

LovingDVD: http://www.avsforum.com/avs-vb/showt...6#post16482286

Lawguy: http://www.avsforum.com/avs-vb/showt...2#post16428562

Manni01 (1.2 gain screen): http://www.avsforum.com/avs-vb/showt...1#post16431351

MarcelW: http://www.avsforum.com/avs-vb/showt...9#post16433669

Lawguy LT vs i1Pro http://www.avsforum.com/avs-vb/showt...8#post16438408

RickS (HDMI Enhanced): http://www.avsforum.com/avs-vb/showt...4#post16630004

Manni01: back to 1.1 gain/new lamp, and HDMI Enhanced, settings for Rec709 and SMPTE-C http://www.avsforum.com/avs-vb/showt...0#post16662220

Manni01: updated Rec709 and SMPTE-C calibrations, along with a PAL calibration: http://www.avforums.com/forums/dlp-l...ml#post9767111

Calibration Tips:

Classic beginner's mistake and link to Tom Huffman's CMS calibration tutorial and GregR's calculator thread: http://www.avsforum.com/avs-vb/showt...3#post16370193

How to use filters to check brightness (LovingDVD): http://www.avsforum.com/avs-vb/showt...7#post16372917

When/why NOT to use filters (GregR & Tom Huffman): http://www.avsforum.com/avs-vb/showt...7#post16373717 and http://www.avsforum.com/avs-vb/showt...1#post16380651

dE discussion: http://www.avsforum.com/avs-vb/showt...5#post16374865

Tom Huffman's spreadsheet for CIELUV: http://www.avsforum.com/avs-vb/showt...7#post16378927

GregR's DisplayCalibration Calculator: http://www.avsforum.com/avs-vb/showt...2#post16382042

Get a screenshot in HCFR: http://www.avsforum.com/avs-vb/showt...8#post16383268

Which USB cable for the firmware upgrade?: http://www.avsforum.com/avs-vb/showt...7#post16383437

Training a meter to another in HCFR: http://www.avsforum.com/avs-vb/showt...4#post16384494

Adjusting greyscale (GregR): http://www.avsforum.com/avs-vb/showt...0#post16387960

Link to Calibration for Dummies: http://www.avsforum.com/avs-vb/showt...9#post16402839

Use of filter and calibration tips (Darinp2): http://www.avsforum.com/avs-vb/showt...9#post16431819

Saturation levels explained (Tom Huffman): http://www.avsforum.com/avs-vb/showt...2#post16439382

Sharpness/focus adjustment tips (GregR / LeDahu / Deanbob): http://www.avsforum.com/avs-vb/showt...2#post16689752

Great tips/tools for gamma calibration (LovingDVD / LeDahu): http://www.avsforum.com/avs-vb/showt...8#post17017488

Gamma tweaking V1.2 (english translation and VERY IMPORTANT SPECIAL PROCEDURE): http://www.avsforum.com/avs-vb/showt...9#post17045339

Gamma tweaking V2 (Le Dahu): http://www.avsforum.com/avs-vb/showt...6#post17060116

Contrast and RGB (Tom Huffman et al): http://www.avsforum.com/avs-vb/showt...8#post17150298

REST OF INITIAL POST:


I have done a first attempt with the new firmware, and the news is mostly good!


- The range for the controls has been extended from -60 to 60 (instead of -30 to 30), which gives enough range to dial the gamut perfectly without touching the general color control. Well done JVC!


- The linearity is good but not perfect. Most colors stay where they should, but green seems to be a bit oversaturated at 75% when calibrating at 100%. Nothing compared to the first firmware, but still not perfect. [edit: this was due to an error on my side, there is NO LINEARITY problem with the new firmware].


- I had only time for a quick calibration today, so I'll post more later. I attach my HCFR files for those who want to have a look at the details (EDIT: I used a brand new i1pro to calibrate).


If you want to try my settings (only after upgrading the firmware), here they are:


[EDIT: please do not use these settings, I and others have posted updated settings, see links above].


Contrast=0

Brightness=0

Color=0

Tint=0


Color temp (new lamp, probably not useful for most of you)

Gain R=-24, G=0, B=-54

Offset R=-1 G=-3 B=0


CMS (H,S,B)

Red -4 -23 7

Yellow 22 -44 38

Green -5 -39 44

Cyan -3 -48 39

Blue 37 -8 -4

Magenta -6 0 -3


I didn't have time to do any fine-tuning on gamma etc...

 

New firmware.zip 153.3935546875k . file



 

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#252 ·

Quote:
Originally Posted by gregr /forum/post/16382497


So that's it. I just hated to see everyone so upset by those 0.1, 0.2 dE calculated differences.

It wasn't everyone, and I wasn't upset, just curious to understand the differences
.


Now I'm also ashamed you have spent so much time on this
.


I guess next time I'll make it clearer it's about the pursuit of knowledge rather than criticism, which it wasn't.


Thanks, and sorry
.
 
#253 ·

Quote:
Originally Posted by Manni01 /forum/post/16382699


It wasn't everyone, and I wasn't upset, just curious to understand the differences
.


Now I'm also ashamed you have spent so much time on this
.


I guess next time I'll make it clearer it's about the pursuit of knowledge rather than criticism, which it wasn't.


Thanks, and sorry
.

Whoops, don't be sorry. I was just joking around. Now I feel bad
 
#256 ·

Quote:
Originally Posted by frohlir944 /forum/post/16382817


can someone please tell me which cable from new egg to use, (is it usb to rs 232?) if yes which one? also they all seem to be wrong male/female wise. Please help with actual firmware steps. THX

Please see in the firmware update thread here http://www.avsforum.com/avs-vb/showt...1#post16138971 and ask in that thread if you have any further questions (about the upgrade process)
. There are detailed instructions in the upgrade firmware program once you install it.
 
#257 ·
Manni,


I know this is a little off topic, but how do you save and post your whole colorfacts screen shots including the data tables as a jpg. file to post here on AVS ? I am only able to save the individual charts and graphs as jpg, but not the whole colorfacts page as you have been posting ?
 
#258 ·
I just recalibrated the unit I originally did in January.


First, the firmware upgrade is a pain in the neck. The first PC we tried wouldn't recognize the display. The second we tried recognized the display, but the upgrade wouldn't complete. We finally got it to work by downloading the .exe file, renaming it (because it didn't have an .exe extension), and then unpacking all of the files into the default folder.


Second, when finished I remeasured the THX mode and User 1. Then I used the CMS to correct User 1. The grayscale at 6500K was so accurate no adjustments were required. I put the gamma at 2.3 and made some minor adjustments at 3 or 4 points.


When I had completed this, the RS20 had the most accurate color I have ever measured from any display. I have a more accurate spectro now than I did in January, and even the THX mode measured incredibly well. For the great majority of people this mode would offer sufficient accuracy assuming my unit was typical. It may not be.

User 1
RGBYCM
0.6700.2790.1430.4450.2000.324
0.3300.7110.0470.5490.3240.143
0.2420.6890.0680.9230.7550.303
CIE948.310.43.611.24.53.1
THX-Now
0.6420.3070.1480.4210.2300.323
0.3280.5830.0620.5000.3280.157
0.2110.7340.0750.9020.8020.296
CIE940.41.50.91.41.21.0
THX-Before
0.6520.3100.1410.4270.2240.315
0.3220.5920.0590.5020.3240.149
0.2020.7270.0750.9020.8150.288
CIE941.51.71.62.01.81.0
CMS
0.6420.2990.1510.4180.2250.322
0.3290.5980.0600.5050.3300.155
0.2070.7240.0750.9230.7840.285
CIE940.60.50.70.30.30.1

The default User 1 is even MORE oversaturated than the RS1s I have worked on.


I thought that a calibrated RS20 looked even better than the Planar I looked at a couple of weeks ago. It has better depth and a less noisy image. This only reinforced my belief that ANSI contrast plays a small role in perceived depth. The ANSI contrast on the RS20 is mediocre, but the illusion of 3D that it delivers is the best I have ever seen. I didn't notice the noise in the Planar at the time, but it became evident when comparing it against the RS20.


To my knowledge the RS20 is the best display of any type for calibration controls and if I have seen a projector that throws a better image I can't think of what it was.
 
#259 ·

Quote:
Originally Posted by TomHuffman /forum/post/16380651


See Greg R's comments below about using filters with pseudo primaries.

http://www.avsforum.com/avs-vb/showp...&postcount=206


In such cases, filters can yield grossly inaccurate recommendations. Not a good idea.

Tom, thanks.

After thinking about this I now see that pseudo R,G,B and complementary colors are what are displayed in the Color Bars when the Color and Tint controls are adjusted -- so even if we had the ability to turn off each R, G, and B panel individually (as with CRT projectors) in an attempt to bypass the filter problem we would still not be able to make accurate adjustments. And the same applies to checking the decoders with the Color bars


KT
 
#260 ·

Quote:
Originally Posted by JeffY /forum/post/16380989


KT, I think there is a fair bit of variance between projectors but nowhere near as much as you get with grey scale where the lamp has a huge influence. Since I know my colour meter isn't accurate I used Manni's CMS settings as a starting point. I believe I'm a pretty good judge of hue. Ramps and filters help dial in saturation and brightness. Manni, has offered to lend me his i1pro at some point so I'll be able to see exactly how far I'm off. In any case I only take rec 709 as a point of reference, I think it's possible to get a few percent extra performance from the display by not follwoing it ridgedly (all IMO of course).

Thanks Jeffy. Can I assume then that after using Manni's settings as a starting point (I assume attempt #3) that you used your own meter and then at the end used the filter approach to do the final tweeking. Or, did you just use the filters and your eye?


KT
 
#261 ·

Quote:
Originally Posted by gregr /forum/post/16382497


OK, for everyone that was bothered by the 0.1-0.2 dE differences between the various spreadsheets and calculators, I increased the internal precision of the calculations in the Display Calibration Calculator to 16 decimal places !!! That should be accurate enough for government work and keep everyone happy!
.....

This has nothing to do with your spreadsheets, but don't you like it when people want precision way beyond the accuracy of their measuring equipment. For instance, the i1 repeatability accuracy is x,y: +/- 0.002
 
#262 ·

Quote:
Originally Posted by nelson4u /forum/post/16382951


Manni,


I know this is a little off topic, but how do you save and post your whole colorfacts screen shots including the data tables as a jpg. file to post here on AVS ? I am only able to save the individual charts and graphs as jpg, but not the whole colorfacts page as you have been posting ?

I just select the HCFR program window, do ALT-Prt sc to save the screenshot, launch MS Paint (or any graphic editor) and do CTRL-V to paste the screeshot. I then save it as .jpg using paint. You can use Prt Sc by itself, but it takes a shot of the whole screen instead of the currently active program window when in combination with the alt key.
 
#263 ·

Quote:
Originally Posted by Manni01 /forum/post/16383268


I just select the HCFR program window, do ALT-Prt sc to save the screenshot, launch MS Paint (or any graphic editor) and do CTRL-V to paste the screeshot. I then save it as .jpg using paint. You can use Prt Sc by itself, but it takes a shot of the whole screen instead of the currently active program window when in combination with the alt key.


I'm not followig you here. I know of the ALT key, but where is Prt sc key ?
 
#264 ·

Quote:
Originally Posted by KTTV Images /forum/post/16383094


Thanks Jeffy. Can I assume then that after using Manni's settings as a starting point (I assume attempt #3) that you used your own meter and then at the end used the filter approach to do the final tweeking. Or, did you just use the filters and your eye?


KT

I used my meter as well, but just as a one of the references. I know that it is inaccurate. My blue for example always reads outside of the possible colour gamut. If I setup the projector to match the readings of my Sypder3 it would look terrible.
 
#265 ·

Quote:
Originally Posted by Manni01 /forum/post/16365507


First of all, thanks for all the help regarding my meters dilemma.


I have solved it by opening a second i1pro that has been sent to me by mistake and that hasn't been collected after 3 weeks and many emails.


It returns exactly the same values as the one I have.


As my eyes also tell me that the i1pro is right, and as the greyscale it returns is superior (ie more neutral) to the greyscale returned by the d2, which is slightly on the warm side, I have decided to put the matter to rest and declare the i1pro the reference and the d2 the off one, which is logical.


The consequence is that THX, at least on my PJ, is seriously undersaturated, but that also tallies as you all know, with my experience of THX (again, on my PJ).


I have put my new lamp back in to clarify that this was not an issue either, so this calibration is done in exactly the same condition as my first attempt (new lamp, i1pro). The main thing that's gone is the human error (too much brightess on green, which induced the slight lack of linearity in my first attempt).


So I have redone a greyscale (just color temp, no work on gamma yet, apart from selecting a 2.3 custom default) using the i1pro. I reckon the greyscale is now flat enough for not being an issue (I made sure I was as close as possible to D65 at 100 IRE).


I have then recalibrated the gamut at 75%, as I realised that it needed much less correction at this level of stimulus to get an almost perfect gamut, and the gamut at 100% is just as good.


I have also run the saturation measures for Stereodaman to dissect
.


The conclusion is that the new firmware gets a clean bill of health
.


It's as linear as one can wish (I don't think anyone has reported a consumer product with such a good linearity).


And it's as straightforward to use as one could wish, as it is now working as intended. There is very little interaction between the controls, which are now reasonably separate.


Based on my experience, I would just warn about pushing brightness too high, which I did by mistake in my first attempt and which generated the initial slight lack of linearity on green, and to calibrate at 75% rather than 100% as the results are at least as good, with less correction applied which I assume is better.


Here are my settings for those who are not entirely put off by the meter dilemna:


Custom color temp (new lamp)

Gain R = -30

Gain G = 0

Gain B=-58

Offset R=0

Offset G=-4

Offset B=0


CMS (HSB)

R= -4 -22 3

Y=6 -46 37

G=-11 -43 31

C=-3 -51 39

B=30 0 -7

M=1 0 -5


I wish I had posted this as my first attempt, and hope you'll forgive me for the confusion, but hopefully this sets the record straight
.


Note: the greyscale and saturation data is in the 3rd attempt HCFR file, as this was my main calibration. The 100% just shows what you get at 100% stimulus, and only the gamut info is relevant in this file.

Hi Manni. Running a new 'Pro' with simular concerns as you had regarding accuracy I came up with the followings settings to hit rec 709 xyY.


(HSB)

R; 3 -22 9

Y; 6 -44 37

G; 15 -37 27

C; 2 -43 35

B; 26 -5 -3

M; 5 -22 12


As these results are reasonably simular to yours other than Green hue and

Magenta saturation I guess that there is a good chance that our meters are accurate. I have 150 hours on my bulb at this point.


The odd one for me was Blue as I could not get to the exact xy co-ordinate but it was very close.


Out of interest did you get D65 spot on at 75% before taking the measurements ?
 
#266 ·

Quote:
Originally Posted by 008 /forum/post/16383359


Hi Manni. Running a new 'Pro' with simular concerns as you had regarding accuracy I came up with the followings settings to hit rec 709 xyY.


(HSB)

R; 3 -22 9

Y; 6 -44 37

G; 15 -37 27

C; 2 -43 35

B; 26 -5 -3

M; 5 -22 12


As these results are reasonably simular to yours other than Green hue and

Magenta saturation I guess that there is a good chance that our meters are accurate. I have 150 hours on my bulb at this point.


The odd one for me was Blue as I could not get to the exact xy co-ordinate but it was very close.


Out of interest did you get D65 spot on at 75% before taking the measurements ?

Thanks for this, that's really useful. It looks like we both have an i1pro that works and an undersaturated THX mode.


We're even clser re red because after a check on Y with the filters, I bumbed brightness to from 3 to 6.


Blue is the tricky child now that green is sorted with the new CMS. I find it's the most difficult color to get right without making things worse. I was waiting for my screen to fine-tune my calibration, won't be until Monday now.


No, I didn't get D65 spot on at 75% because I'm used to calibrating at 100% and there is no gamma corretion point at 100%, so I got into the habit (which I have to break) to get 100% spot on and flatten the curve as much as I can with the offsets, then finalise with the gamma correction.


You're right, I'll make sure next time I get d65 spot on at 75%, and I'll pay extra attention to blue.


Did you calibrate at 75% or 100%? How does your linearity track? Dd you select a gamma?


Thanks again for the feedback!
 
#267 ·

Quote:
Originally Posted by nelson4u /forum/post/16383303


I'm not followig you here. I know of the ALT key, but where is Prt sc key ?

It's short for Print Screen (we used to get text hardcopy in MS-DOS with that one, not used as much these days
). It should be somewhere in the upper right corner of your keyboard (if US is same as UK, which I'm not sure).
 
#268 ·

Quote:
Originally Posted by frohlir944 /forum/post/16382817


can someone please tell me which cable from new egg to use, (is it usb to rs 232?) if yes which one? also they all seem to be wrong male/female wise. Please help with actual firmware steps. THX

Short answer (per that thread):
USB A to mini-B 5pin cable


Choose your the length you need.

Thanks for the reminder.

I just ordered one.


Mike
 
#269 ·
"When I had completed this, the RS20 had the most accurate color I have ever measured from any display... To my knowledge the RS20 is the best display of any type for calibration controls and if I have seen a projector that throws a better image I can't think of what it was."


An impressive statement, Tom, and coming from you, one that carries a lot of weight. I considered upgrading from the RS1 to the RS20, but ended up deciding not to. I have been keeping an eye on the CMS threads, and my take-away prior to this firmware release was that the JVC CMS had two major issues - insufficient correction range, and weirdly interacting controls that made getting where you wanted to go a royal PITA compared to, say, the RadienceXD. It is clear that JVC addressed the range problem, but I had presumed that the control interactions were still a problem. Your post suggests that the upgraded CMS is now essentially perfect. Am I getting this right?


Kevin


PS: What is your "more accurate spectro"?
 
#270 ·

Quote:
Originally Posted by TomHuffman /forum/post/16383023


I just recalibrated the unit I originally did in January.


First, the firmware upgrade is a pain in the neck. The first PC we tried wouldn't recognize the display. The second we tried recognized the display, but the upgrade wouldn't complete. We finally got it to work by downloading the .exe file, renaming it (because it didn't have an .exe extension), and then unpacking all of the files into the default folder.


Second, when finished I remeasured the THX mode and User 1. Then I used the CMS to correct User 1. The grayscale at 6500K was so accurate no adjustments were required. I put the gamma at 2.3 and made some minor adjustments at 3 or 4 points.


When I had completed this, the RS20 had the most accurate color I have ever measured from any display. I have a more accurate spectro now than I did in January, and even the THX mode measured incredibly well. For the great majority of people this mode would offer sufficient accuracy assuming my unit was typical. It may not be.

User 1
RGBYCM
0.6700.2790.1430.4450.2000.324
0.3300.7110.0470.5490.3240.143
0.2420.6890.0680.9230.7550.303
CIE948.310.43.611.24.53.1
THX-Now
0.6420.3070.1480.4210.2300.323
0.3280.5830.0620.5000.3280.157
0.2110.7340.0750.9020.8020.296
CIE940.41.50.91.41.21.0
THX-Before
0.6520.3100.1410.4270.2240.315
0.3220.5920.0590.5020.3240.149
0.2020.7270.0750.9020.8150.288
CIE941.51.71.62.01.81.0
CMS
0.6420.2990.1510.4180.2250.322
0.3290.5980.0600.5050.3300.155
0.2070.7240.0750.9230.7840.285
CIE940.60.50.70.30.30.1

The default User 1 is even MORE oversaturated than the RS1s I have worked on.


I thought that a calibrated RS20 looked even better than the Planar I looked at a couple of weeks ago. It has better depth and a less noisy image. This only reinforced my belief that ANSI contrast plays a small role in perceived depth. The ANSI contrast on the RS20 is mediocre, but the illusion of 3D that it delivers is the best I have ever seen. I didn't notice the noise in the Planar at the time, but it became evident when comparing it against the RS20.


To my knowledge the RS20 is the best display of any type for calibration controls and if I have seen a projector that throws a better image I can't think of what it was.


Tom,

With the new firmware do you still need to use the THX service menu adjustment to get an accurate gray scale, or can this now be achieved solely with the normal User1 settings with CMS and gamma controls?

Thanks,

Carl
 
#271 ·
I did some rigorous calibration and side-by-side comparisons of photos between my calibration and THX mode.


THX measures very nicely on my RS20. My calibration measures even better. Comparisons of pictures when switching back and forth between THX and User 3 show very little, if any, differences in colors.


Based on this, I trust that my i1 is measuring consistently.


My calibrated numbers are very different than Manni's. Manni's yields a green that looks far too oversaturated.


I am very tempted now to get a better meter and see where the problem lies.
 
#273 ·
I just wanted to thank everyone involved that helped get where we are today as well as JVC for understanding their customers needs kudos to everyone.


Manni I tried both of your settings the 1st & 3rd and all I can say is wow! Absolutely amazing colors, depth to the image etc..


Can't ask for a better picture PERIOD..the RS20 officially kicks major butt! Even the Lumis I saw at CES does NOT provide the depth this RS20 does TODAY. Tom Huffman confirms its the best display HE has seen and whether or not he has seen a Lumis I can assure you I have and the image of the Lumis at the show was NOT as striking as the image on the RS20 before me today with this new firmware.


Now I know I probably started something I shouldn't by mentioning the Lumis in the same sentence as the RS20 and will get slammed for it by a couple of individuals you know who but the truth sometimes hurts especially when the competition costs 7 times more than this JVC. And did I forget to mention JVC's extremely quick response to solve this problem unlike the others?
 
#274 ·

Quote:
Originally Posted by Kevin McCarthy /forum/post/16383618


I have been keeping an eye on the CMS threads, and my take-away prior to this firmware release was that the JVC CMS had two major issues - insufficient correction range, and weirdly interacting controls that made getting where you wanted to go a royal PITA compared to, say, the RadienceXD. It is clear that JVC addressed the range problem, but I had presumed that the control interactions were still a problem. Your post suggests that the upgraded CMS is now essentially perfect. Am I getting this right?


PS: What is your "more accurate spectro"?

There are still some interactions. For example, lowering saturation also lowers brightness, which it shouldn't. But then you just restore the brightness using the brightness control and it is fine. So saturation affects brightness, but brightness doesn't affect saturation, at least not much.


The Orb Optronics SP-100 spectroradiometer. With it I measured a THX green that was undersaturated a little (x0.307, y0.583), but the rest of the gamut was very close to accurate.
 
#276 ·

Quote:
Originally Posted by Chris Dallas /forum/post/16384218


I just wanted to thank everyone involved that helped get where we are today as well as JVC for understanding their customers needs kudos to everyone.


Manni I tried both of your setting the 1st & 3rd and all I can say is wow! Absolutely amazing colors, depth to the image etc..

Thanks for the feedback Chris, I'm glad my settings worked that well for you, as they don't seem to transpose equally on all units, which is to be expected.


I'll fine-tune my calibration next week and will post the results. The feedback from everyone has been extremely useful, as always, so I'm hoping to get it even closer. But it's so good that I didn't feel compelled to get the meter out again despite the change of screen material.


But already, as Tom and others have reported, the picture is absolutely fabulous.


I've replaced my screen material, and the fact that the speakers are now behind the screen, with the added dimensionalty and PQ provided by the new calibration made possible by the new firmware, makes it an amazing combination.


Sometimes I regret that my screen is only 88", but then I think I have a giant Kuro screen in a bat cave and I feel better
 
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