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Official JVC DLA-RS46 / DLA-X35 owners thread - Page 58

post #1711 of 2080
Quote:
Originally Posted by curttard View Post

Can anyone here go to Lens Control > Lens Center and see if, at the reset center point, the center of their image is at the actual height of the projector?

Are you using a 16:9 or 2.35 screen?
post #1712 of 2080
My screen is 2.35, but I would assume that would make no difference. The vertical center is the same. In any case I do my setup zoomed in for 16:9.
post #1713 of 2080
I think the only way to get the lens back to center is to physically look at the lens to see if you have it in the center.
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post #1714 of 2080
i tried, yes, same height.
post #1715 of 2080
If you move the lens shift fully in each direction then you can roughly tell what the mid point is if you're interested. I believe that it is possible in the service menu to clear the lens centre position so it may not be set correctly if someone has been fiddling (it was possible on the older RS10 model for sure).
post #1716 of 2080
I have my lens shift maxed out completely, combo of vertical and horizontal though, and I certainly haven't seen anything I'd worry about. pixel structure is easily seen when standing at the screen, and good uniformity across the whole screen too.

I'd probably find something else to obsess over tongue.gif
post #1717 of 2080
Quote:
Originally Posted by Kelvin1965S View Post

If you move the lens shift fully in each direction then you can roughly tell what the mid point is if you're interested. I believe that it is possible in the service menu to clear the lens centre position so it may not be set correctly if someone has been fiddling (it was possible on the older RS10 model for sure).

Correct, but not recommended to muck around in the service menu.
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post #1718 of 2080
Quote:
Originally Posted by AV Science Sales 5 View Post

Correct, but not recommended to muck around in the service menu.

Isn't that where all you guys go to calibrate?
post #1719 of 2080
This might be a stupid question, but why does the projector make a mechanical noise and take awhile to switch from 60fps source to 24fps? I would have thought the projector would always be displaying 120fps, and just repeating each frame of 60fps content twice, and 5x for 24fps content.
post #1720 of 2080
Quote:
Originally Posted by AV Science Sales 5 View Post

Correct, but not recommended to muck around in the service menu.

I wasn't recommending to use the service menu just saying that someone might have been fiddling about in there.
Quote:
Originally Posted by StevenC56 View Post

Isn't that where all you guys go to calibrate?

No, there isn't any need (or any advantage AFAIK to going in there). Best to keep out incase of issues like may have (possibly) happened to the poster further up.
post #1721 of 2080
Question. I have any projector in a inwall shelf. I think my subwoofer might be causing it to shake. Can I out my r46 on something like a subdude or anything you would recommend?
post #1722 of 2080
Quote:
Originally Posted by Holiday121 View Post

Question. I have any projector in a inwall shelf. I think my subwoofer might be causing it to shake. Can I out my r46 on something like a subdude or anything you would recommend?

It may help some. It depends on how much the shelf is moving.
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post #1723 of 2080
Quote:
Originally Posted by Kelvin1965S View Post

I wasn't recommending to use the service menu just saying that someone might have been fiddling about in there.
No, there isn't any need (or any advantage AFAIK to going in there). Best to keep out incase of issues like may have (possibly) happened to the poster further up.

I'm out of the loop again! I wzs just going by what had to be done to calibrate my Pioneer Elite CRT rear projection TV years ago. You had to go into the service menu to do so. I take it that's not the case with these newer projectors? All adjustments by a calibrator are made in the user settings?
post #1724 of 2080
Quote:
Originally Posted by Skylinestar View Post

Does DILA has convergence issue like 3LCD?
Can I check this RS46/X35 as cargo load on the aircraft?

Just to add some to the discussion, the RS46 supports misconvergence correction by shifting a full pixel. The more expensive JVC models support smaller increments. I guess one advantage to being limited to a full pixel is that it doesn't seem to degrade the image any since the projector is simply shifting the image on the panel. In my case red is off by a full pixel to the right and green/blue are pretty much perfect. So shifting red one pixel left results in excellent convergence.
post #1725 of 2080
what is the difference of lens shift and picture position adjustment (on the option menu of input signal tab)? both could change the image position in the screen.
post #1726 of 2080
Quote:
Originally Posted by StevenC56 View Post

I'm out of the loop again! I wzs just going by what had to be done to calibrate my Pioneer Elite CRT rear projection TV years ago. You had to go into the service menu to do so. I take it that's not the case with these newer projectors? All adjustments by a calibrator are made in the user settings?

A Pro calibrator shouldn't have any need to go into the service menu on the RS46/X35. It doesn't have a CMS of course, but there isn't anything in the SM that would help in anycase. Many have found that just using 'Standard' colourspace and calibrating the greyscale/gamma (with the user controls) gives a pretty good result even without a CMS. Unlike the older RS10/HD350 I used to have which was grossly oversaturated no matter what you did unless you used an external CMS.

Quote:
Originally Posted by fightclub View Post

what is the difference of lens shift and picture position adjustment (on the option menu of input signal tab)? both could change the image position in the screen.

Picture position moves the image electronically across the panels. Lens shift moves the optical path to shift the image on the screen. If you use picture position and say move it upwards then IIRC it starts to cut off the top edge of the image. I don't really know why most of us would need to use it unless there was some issue with your source perhaps.
post #1727 of 2080
Quote:
Originally Posted by Kelvin1965S View Post

Picture position moves the image electronically across the panels. Lens shift moves the optical path to shift the image on the screen. If you use picture position and say move it upwards then IIRC it starts to cut off the top edge of the image. I don't really know why most of us would need to use it unless there was some issue with your source perhaps.


The reason i asked this question is because quite a few people thinks use lens shift will worsen the image quality. But nobody says the picture postion function will worsen too.
So if we want to lower down the position of the image, maybe using picture position is less harmful than lens shift? Just my initial thoughts.
post #1728 of 2080
The small range of the picture position is one reason which IMHO the lens shift wouldn't make any perceivable difference to sharpness over the same small range (granted using it to extremes might). The second is that you seemed to have missed my point that part of the image gets cropped off when using picture position so you could say that is does have a negative impact and it 'harms' the picture.

I think that maybe you're just over thinking some points that there is little you can do about...it is what it is and if you have to apply shift to line up with your screen, then just use it and go and enjoy some films. smile.gif
post #1729 of 2080
Quote:
Originally Posted by Kelvin1965S View Post

The small range of the picture position is one reason which IMHO the lens shift wouldn't make any perceivable difference to sharpness over the same small range (granted using it to extremes might). The second is that you seemed to have missed my point that part of the image gets cropped off when using picture position so you could say that is does have a negative impact and it 'harms' the picture.

I think that maybe you're just over thinking some points that there is little you can do about...it is what it is and if you have to apply shift to line up with your screen, then just use it and go and enjoy some films. smile.gif

Yes, you are right that i am too burdened by some small factors. Per user manual, the picture position is mainly to fix some abnormal position issue for 3D play.
Per your experience, the CMD function helps a lot for motion perspective?
post #1730 of 2080
I doubt you'd noticed anything use lens shift, even after reading that it supposedly may cause focus problems, I can't see any. moving my projector into a spot that required zero lens shift was not really possible(unless having the shadow of my head on screen was a more acceptable issue...) and I really don't feel like I'm missing anything. I'm the kind of guy that enjoys a good 'tweak' to try and squeeze some minutely measureable and barely noticeable improvement. I've done a lot of painting, a lot 'calibrating', a lot of tweaking of my screen, and aiming the projector to get a square image. I have not considered remounting my projector to reduce lens shift.

if you SEE issues, fix them. but don't go looking for stuff. there's probably 100 things 'wrong' with your projector, there's a reason it's the cheapest one jvc makes afterall, but none of them will be so glaring as to prevent you from enjoying the movie. I mean, there's probably 100 things 'wrong' with your average commercial theatre too, but you're not very likely to worry about that either
post #1731 of 2080
Some very good points there Fierce_GT. smile.gif

Regarding CMD; I have recently tried it again (after seeing a friend's Sony HW50ES and wanting to try to emulate that better motion) but I can see 'lines' following moving objects such as the back of a person's head. Sometimes it goes un noticed, but I'm tended to run with it off. I think I would have preferred the Sony for me, having finally seen one now, but since the zoom doesn't suit my room it's a moot point. I just hope that the newer JVCs improve on this score so I can get one eventually or that I'm more impressed the next time I see the Sony VW500ES (I liked it but the blacks seemed especially weak on the sample I saw) as this model will fit in my room, though perhaps not my wallet.smile.gif
post #1732 of 2080
Quote:
Originally Posted by Kelvin1965S View Post

Some very good points there Fierce_GT. smile.gif

Regarding CMD; I have recently tried it again (after seeing a friend's Sony HW50ES and wanting to try to emulate that better motion) but I can see 'lines' following moving objects such as the back of a person's head. Sometimes it goes un noticed, but I'm tended to run with it off. I think I would have preferred the Sony for me, having finally seen one now, but since the zoom doesn't suit my room it's a moot point. I just hope that the newer JVCs improve on this score so I can get one eventually or that I'm more impressed the next time I see the Sony VW500ES (I liked it but the blacks seemed especially weak on the sample I saw) as this model will fit in my room, though perhaps not my wallet.smile.gif

if fully understood your comments earlier, maybe i shall choose HW50 instead of JVC x35?
post #1733 of 2080
Quote:
Originally Posted by fierce_gt View Post

I doubt you'd noticed anything use lens shift, even after reading that it supposedly may cause focus problems, I can't see any. moving my projector into a spot that required zero lens shift was not really possible(unless having the shadow of my head on screen was a more acceptable issue...) and I really don't feel like I'm missing anything. I'm the kind of guy that enjoys a good 'tweak' to try and squeeze some minutely measureable and barely noticeable improvement. I've done a lot of painting, a lot 'calibrating', a lot of tweaking of my screen, and aiming the projector to get a square image. I have not considered remounting my projector to reduce lens shift.

if you SEE issues, fix them. but don't go looking for stuff. there's probably 100 things 'wrong' with your projector, there's a reason it's the cheapest one jvc makes afterall, but none of them will be so glaring as to prevent you from enjoying the movie. I mean, there's probably 100 things 'wrong' with your average commercial theatre too, but you're not very likely to worry about that either

how is your comment on the motion performance of x35? using CMD? many thanks!
post #1734 of 2080
Quote:
Originally Posted by fightclub View Post

if fully understood your comments earlier, maybe i shall choose HW50 instead of JVC x35?

If you are finding a problem with the motion on the JVC then perhaps the HW50 would be a better choice for you. Do you have the opportunity to change?

How do YOU find the motion with CMD on low? Even though I'm not using it myself, there is no reason why you can't if you like the result anyway.

If you can't swap then I'd try to live with your choice as selling a nearly new projector (with a non transferable warranty remember) will show more depreciation than you'd get selling a new car the day after you bought it. It's why I would usually recommend a demo before purchase (though I think this wasn't an easy option for you?).
post #1735 of 2080
I found the CMD even in the low setting to give to much of a soap opera effect. With sharpness and detail at or below 2 I don't really see any problems with motion. Of course I'm not directly comparing it to anything either. It hasn't stuck out as being a lot worse than my previous projector though.
post #1736 of 2080
Indeed: I found my X35 an improvement over my old HD350/RS10 it was only when I went to a forum meeting where I've seen Sony VW1000ES, VW500ES and also a friend's HW50Es that I realised that motion could be further improved without using CMD (or equivalents).

The moral of this story being, don't look at anything else if you're happy. rolleyes.gif Same went for my speakers and subwoofer, so I ended up changing from PMC to MK 150 series and I'm building two 15" sealed subs. eek.gif
post #1737 of 2080
Yes it's always a trade off. I'm sure that I would notice the 50 or 55ES improvements with motion, but whether that makes it your ideal projector depends on where your priorities are. The lower black floor on the JVC without the use of a DI is a plus to me (I seem to be easily bothered by a DI). I also wanted lens memory. If your criteria shifted to things like overall brightness and 3D performance and you were bothered by the motion on the JVC, I could see loving the Sony. Both are great projectors.

Personally since I have never found myself distracted by the motion handling on the RS46, I doubt that knowing the 55ES was better would bother me much. Unless something brings me out of the immersion of the film, I'm not likely to nitpick it. To bad our local Sony dealer no longer carries their projectors or any of their high end TV's anymore. Would be fun to see one in person.
post #1738 of 2080
Quote:
Originally Posted by jeahrens View Post

Yes it's always a trade off. I'm sure that I would notice the 50 or 55ES improvements with motion, but whether that makes it your ideal projector depends on where your priorities are. The lower black floor on the JVC without the use of a DI is a plus to me (I seem to be easily bothered by a DI). I also wanted lens memory. If your criteria shifted to things like overall brightness and 3D performance and you were bothered by the motion on the JVC, I could see loving the Sony. Both are great projectors.

Personally since I have never found myself distracted by the motion handling on the RS46, I doubt that knowing the 55ES was better would bother me much. Unless something brings me out of the immersion of the film, I'm not likely to nitpick it. To bad our local Sony dealer no longer carries their projectors or any of their high end TV's anymore. Would be fun to see one in person.

Is Sony motionflow function better than JVC CMD function? or without any such function, SONY better than JVC for motion play?
post #1739 of 2080
Quote:
Originally Posted by fightclub View Post

Is Sony motionflow function better than JVC CMD function? or without any such function, SONY better than JVC for motion play?

I've never seen the 50 or 55ES in person, so I can't make a definitive comment. The professional reviews say that the 55ES (and I'm sure the 50ES) do handle motion better. Kelvin1965S has seen both in person and states that the Sony unit does handle motion better. I've owned an Infocus IN76 and X10 (both single chip DLP) and have spent time with an Optoma HD70, Optoma HD20, Mitsubishi 1500 and Mitsubishi 3800. The motion on the RS46 seems just fine to me. Nothing calls attention to it. If that is something you weigh heavily, then the evidence says that the Sony will be a better unit.

As far as Motionflow or CMD, I have little interest in frame interpolation technologies. I did turn CMD on briefly on the low setting just to see what it looked like. It didn't seem to generate any objectionable artifacts for the brief time I played with it. Just not something I like.
post #1740 of 2080
Quote:
Originally Posted by jeahrens View Post

I've never seen the 50 or 55ES in person, so I can't make a definitive comment. The professional reviews say that the 55ES (and I'm sure the 50ES) do handle motion better. Kelvin1965S has seen both in person and states that the Sony unit does handle motion better. I've owned an Infocus IN76 and X10 (both single chip DLP) and have spent time with an Optoma HD70, Optoma HD20, Mitsubishi 1500 and Mitsubishi 3800. The motion on the RS46 seems just fine to me. Nothing calls attention to it. If that is something you weigh heavily, then the evidence says that the Sony will be a better unit.

As far as Motionflow or CMD, I have little interest in frame interpolation technologies. I did turn CMD on briefly on the low setting just to see what it looked like. It didn't seem to generate any objectionable artifacts for the brief time I played with it. Just not something I like.

Appreciated and I will stick with my RS46/X35.
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