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Offical JVC DLA-RS4810 Owners Thread - Page 60

post #1771 of 1794
Quote:
Originally Posted by DavidHir View Post

Yep, makes sense.

If I go 2:35 and since I will be using the Rosco black velour paint (painter starting tonight smile.gif ), I wonder if the black bars will even be an issue?

Sounds like a good time to "cross that bridge when you come to it." If it's a non issue that's one less "thing" to think about.
post #1772 of 1794
Another reason I am leaning 2:35 is because I have very little room/height to mount my speakers underneath the screen (all being wall-mounted) The less screen real estate the better.
post #1773 of 1794
If space is limited above and below the screen, have you thought of going with an AT screen? It really adds to the theater experience by having the speakers behind the screen (and right in the middle of it!) plus you gain a lot of space you can use for screen size instead
post #1774 of 1794
Quote:
Originally Posted by Audiojan View Post

If space is limited above and below the screen, have you thought of going with an AT screen? It really adds to the theater experience by having the speakers behind the screen (and right in the middle of it!) plus you gain a lot of space you can use for screen size instead

Plus you get to use identical speakers for L, C and R.

I have an AT setup and love it!
post #1775 of 1794
Quote:
Originally Posted by Audiojan View Post

If space is limited above and below the screen, have you thought of going with an AT screen? It really adds to the theater experience by having the speakers behind the screen (and right in the middle of it!) plus you gain a lot of space you can use for screen size instead

It would cut down a bit on my throw and limit my screen size as the room is not big (12x10x8). The wall is only about 119" wide and my viewing width of screen will be around 109" (around 116" with border). However, I ended up buying some Definitive Technology Pro Monitor 1000 speakers that should mount nicely underneath the screen on the wall and all three are identical. smile.gif I have an SVS PC Plus 12" subwoofer that will be in the rear corner of the closet (no doors) which will handle the heavier loads if you will.
post #1776 of 1794
Curttard,

I had a 4810 and the gamma you are getting was my experience as well (avg around 1.5 u shaped)
Using Calman with i1pro, bat cave, 110" 16x9
Also undersaturated green (Typical with JVC it seems) unless I used the animation mode If I remember correctly (It was one of the mode not typically recomended like film, natural etc)
I played around with the JVC controls for ever and could not get a decent result, that is getting gamma correct left a dim picture. I could never understand how people were running the iris
at really low numbers like -12,13,14 and have decent brightness. I had to run mine way up to get reasonable brightness.
I have a radiance mini with 125 point autocal via calman software.
Using the mini with JVC animation mode and running auto cal I was able to get pretty good results. Much better than with the JVC controls.
Nice flat gamma, very good greyscale and 125 point color with very low errors.
I was somewhat satisfied but the pic was still bit dim, little lifeless in some scenes.
Now I came from a Epson 5020 and upgraded to the JVC since it was said that the JVC would be "brighter" in best modes than the Epson, not to mention better blacks, eshift etc.
Well just not my experience. The Epson calibrated via the radiance in natural mode was much brighter with similar results in auto cal (Flat gamma 2.2, grayscale, 125point color).
My eye told me this, but also the meter showed around 14 lumens with the epson vs 11 with the JVC both after the autocal. Both were slightly higher lumens prior to cal.
I know the i1pro is not an accurate lumens device but since I am using same meter for both it is relative.

Now I liked the JVC picture better, better pixel fill with Eshift, better blacks?? maybe hard to say without side by side compare and little more "film like" image but I always felt like I was missing something with the dim pic.
Maybe I got a bad sample? I returned it and went back to the Epson for now. Not knocking JVC just did not deliver in my case.

Waiting for real 4k and better brightness before my next upgrade, be it JVC or whoever can deliver those.
post #1777 of 1794
Very interesting. I'm mostly happy with the pic these days although I am disappointed in brightness as you were. Also curious is that in these JVC threads (maybe this very one) people said their brightness IMPROVED after calibration which was certainly not my experience.
post #1778 of 1794
Guys,

I'm eyeing the Carada 109" wide (not sure on 2:35 or 2:05 yet) Brilliant White. Walls and carpet will be black. Am I going to run into any brightness issues as the lamp fades a bit? Just wondering if I should go with a slightly higher screen gain as the Carada BW is really around a 1.1 tested as I understand it.

Now, I am not one who likes a very bright image especially since I will be sitting about 9.5 to 10 feet back or so, but just wondering.
post #1779 of 1794
Quote:
Originally Posted by DavidHir View Post

Guys,

I'm eyeing the Carada 109" wide (not sure on 2:35 or 2:05 yet) Brilliant White. Walls and carpet will be black. Am I going to run into any brightness issues as the lamp fades a bit? Just wondering if I should go with a slightly higher screen gain as the Carada BW is really around a 1.1 tested as I understand it.

Now, I am not one who likes a very bright image especially since I will be sitting about 9.5 to 10 feet back or so, but just wondering.

I'd say you will be fine. I have a 100" wide Seymour screen, roughly 1.0 measured gain iirc, and it's plenty bright (in a dark room) with the iris about halfway.
post #1780 of 1794
I just learned there is a lens memory bug reported with the 4810. I planned on getting this projector fully calibrated, but learned from my calibrator this would throw off my calibration if I have to re-zoom for 2:35 9since I am leaning CIH). Have you guys been encountering this at all? This is a major issue for me.
post #1781 of 1794
I've been told it has to do with lens "shift" and not focus or zoom. Sounds better.
post #1782 of 1794
For those that are concerning about brightness versus calibrated. I'll throw in my experience. Before calibration, I could close down the iris to like -12~15 to get a better black and still retain decent brightness. After calibration, I had to open up the iris to -1~3 obtain the 12-14ft/lambert brightness standard. However, after calibration, the color is much much better when compare to my self calibrate using Disney WOW. And even I opened up the iris, the black is still better than pre- pro calibration at -12~15. The only problem that I could see is since I'm using -3 at the moment for the iris setting, I don't have much room for improvement when the bulb gets old besides turn up the lamp power to high.
post #1783 of 1794
Landshark1, who calibrated your projector and would you happen to have a report to share? Thanks.
post #1784 of 1794
Anyone have recommendations on gamma settings for getting less crushed blacks? Or is a full calibration the only way? I've had my X55r for a few months now, and generally I'm very pleased with it; however, it seems to crush blacks fairly substantially no matter what I do in terms of gamma - even 2.0 results in a fairly dim image. Maxing out the white Dark/Bright level to +7 helps, but this doesn't seem ideal.
post #1785 of 1794

I am new to the projector thing so sorry for the green guy question,

 

I bought a 4810 a while ago, but just found some time to get it set up to test. I am wonding if any one could help me out, I am finding that when using component cables that the picture seems to have a very yellow look in it. If I hook up HDMI to the same video source the picture looks much better without that yellow looking haze to it (both running 1080I 60F). I was wondering if there is something wrong with my component input. I have tried different video sources and component cables. Does each source need to be calibrated or should they look the same right out of the box?

post #1786 of 1794
Quote:
Originally Posted by DavidHir View Post

I just learned there is a lens memory bug reported with the 4810. I planned on getting this projector fully calibrated, but learned from my calibrator this would throw off my calibration if I have to re-zoom for 2:35 9since I am leaning CIH). Have you guys been encountering this at all? This is a major issue for me.

Have your calibrator calibrate for both setting on User1 and User 2.
post #1787 of 1794
Quote:
Originally Posted by DavidHir View Post

I just learned there is a lens memory bug reported with the 4810. I planned on getting this projector fully calibrated, but learned from my calibrator this would throw off my calibration if I have to re-zoom for 2:35 9since I am leaning CIH). Have you guys been encountering this at all? This is a major issue for me.

What kind of lens memory bug? The lens memory controls just physically move the lens. It shouldn't have any effect at all on your calibration settings.
post #1788 of 1794
The lens memory feature isn't flawless, but it works well most of the time. Some users are reporting that it gets the zoom and focus portion correct every time, but the lens shift can be off an inch or two and requires a quick touch up. It's my understanding that the Sony's do the same thing.
post #1789 of 1794
Quote:
Originally Posted by DavidHir View Post

I just learned there is a lens memory bug reported with the 4810. I planned on getting this projector fully calibrated, but learned from my calibrator this would throw off my calibration if I have to re-zoom for 2:35 9since I am leaning CIH). Have you guys been encountering this at all? This is a major issue for me.
The lens memory isn't flawless as other said. Sometimes it's off from the mark, but most of the time it's fine. Plus it has nothing to do with the color calibration as it only zoom in and out the lens for the screen, color accuracy will stay the same. E.g. a 150,150,150 red will always stay 150,150,150 regardless you zoom in or out.
Quote:
Originally Posted by DavidHir View Post

Landshark1, who calibrated your projector and would you happen to have a report to share? Thanks.
I had Tom Huffman from ChromaPure to calibrate the projector for me.
post #1790 of 1794
Good to hear Landshark, thanks!
post #1791 of 1794
I posted this in an X55 thread, but thought it should be offically posted here too. smile.gif

Well, Chad spent this past Tues and Weds at my house helping me install my equipment and he fully calibrated my receiver and projector for my dedicated room. I cannot tell you enough what a great and thorough job he did. He helped me do a full day of measuring and mounting of seven Definitive Technology speakers including my screen (Da-Lite HD 1.1, 108" wide 2:35:1) before he got to the pro Audyssey calibration on my Denon X3000 and finally the RS4810.

It's just an amazing cinematic experience watching and listening to a movie especially as my room is painted and carpeted black.

In specific regards to the RS4810...

He must have spent close to 8 hours calibrating three different aspect ratios for my constant image height screen. He thoroughly checked each video profile on the RS4810 (stage, cinema, etc.) to find the best. He uses a Jeti 1211 profiled to a D6. As anyone knows who's familiar with this stuff, the Jeti 1211 is remarkably accurate in terms of measuring color - and as anyone who knows Chad will tell you how meticulous and detailed he is and he doesn't leave (no matter what time it is) until he's done everything in his ability to optimize for that display or receiver.

After it was finally done, I ended up close to 13.5 ftL which seems perfect for my eyes. Gamma at 2.28. If I recall, my contrast ratio was somewhere around 46,000:1 which is about double of my VT60 plasma.

Greyscale and gamma were very flat and nice.

He wasn't able to get all of the color points quite as tight as another 4810 he's done, but the overall gamut delta error is still only 1.6. Color in general looks very good and natural on content. Really happy with what I am seeing.

All in all, everything looks great and I cannot recommend Chad enough!

JVC48102.35.pdf 2880k .pdf file
post #1792 of 1794
Quote:
Originally Posted by DavidHir View Post

Well, Chad spent this past Tues and Weds at my house helping me install my equipment and he fully calibrated my receiver and projector for my dedicated room.
Thanks for posting your calibration comments. I've added a link to your post in the front projection (post number one) lists that are linked in the signature area at the bottom of my post.

If you have further comments to make about your audio or video calibration, it would be great if you could use the edit command to add them to your original post. Enjoy. smile.gif
post #1793 of 1794
Quote:
Originally Posted by DavidHir View Post

I posted this in an X55 thread, but thought it should be offically posted here too. smile.gif

Well, Chad spent this past Tues and Weds at my house helping me install my equipment and he fully calibrated my receiver and projector for my dedicated room. I cannot tell you enough what a great and thorough job he did. He helped me do a full day of measuring and mounting of seven Definitive Technology speakers including my screen (Da-Lite HD 1.1, 108" wide 2:35:1) before he got to the pro Audyssey calibration on my Denon X3000 and finally the RS4810.

It's just an amazing cinematic experience watching and listening to a movie especially as my room is painted and carpeted black.

In specific regards to the RS4810...

He must have spent close to 8 hours calibrating three different aspect ratios for my constant image height screen. He thoroughly checked each video profile on the RS4810 (stage, cinema, etc.) to find the best. He uses a Jeti 1211 profiled to a D6. As anyone knows who's familiar with this stuff, the Jeti 1211 is remarkably accurate in terms of measuring color - and as anyone who knows Chad will tell you how meticulous and detailed he is and he doesn't leave (no matter what time it is) until he's done everything in his ability to optimize for that display or receiver.

After it was finally done, I ended up close to 13.5 ftL which seems perfect for my eyes. Gamma at 2.28. If I recall, my contrast ratio was somewhere around 46,000:1 which is about double of my VT60 plasma.

Greyscale and gamma were very flat and nice.

He wasn't able to get all of the color points quite as tight as another 4810 he's done, but the overall gamut delta error is still only 1.6. Color in general looks very good and natural on content. Really happy with what I am seeing.

All in all, everything looks great and I cannot recommend Chad enough!

JVC48102.35.pdf 2880k .pdf file

Well those look like excellent results. I know mine looks great. And was calibrated. Still wish I had my report though.
post #1794 of 1794
Quote:
Originally Posted by rhale64L7 View Post

Well those look like excellent results. I know mine looks great. And was calibrated. Still wish I had my report though.

Having been into home theater since 1999, I feel like I have finally reached Home Theater Nirvana. smile.gif
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