Setup for 2.35:1 for JVC DLA-RS40 - AVS Forum
1 2 
2.35:1 Constant Image Height Chat > Setup for 2.35:1 for JVC DLA-RS40
thebek's Avatar thebek 02:46 PM 11-12-2010
Hello people.

I pre-ordered a JVC RS40 and a Grandview 2.35:1 screen (125" diag about 49"X115") to replace my Sony D50Q and Draper Luma-2. I'm thinking about getting an anamorphic lens as well. Is there a most suitable distance to mount the projector from the screen, that will work with zooming at first, and later with a lens (not yet having chosen a specific lens), given a lens to screen distance of 13' to about 17'?

One other thing, I'll be mounting the screen on the wall right up to the ceiling (around 7' 6") because I need to shoot over top of the speakers and the room is narrow, around 12'. So I'll have to look up slightly more than before. The seats are around 14' and 17'. I'm not sure if there is any caveats to that. Its probably just minor and easy to get used to. Looking upwards in a real theater is common.

Thanks.

Trogdor2010's Avatar Trogdor2010 07:02 PM 11-12-2010
Quote:
Originally Posted by thebek View Post

Hello people.

I pre-ordered a JVC RS40 and a Grandview 2.35:1 screen (125" diag about 49"X115") to replace my Sony D50Q and Draper Luma-2. I'm thinking about getting an anamorphic lens as well. Is there a most suitable distance to mount the projector from the screen, that will work with zooming at first, and later with a lens (not yet having chosen a specific lens), given a lens to screen distance of 13' to about 17'?

One other thing, I'll be mounting the screen on the wall right up to the ceiling (around 7' 6") because I need to shoot over top of the speakers and the room is narrow, around 12'. So I'll have to look up slightly more than before. The seats are around 14' and 17'. I'm not sure if there is any caveats to that. Its probably just minor and easy to get used to. Looking upwards in a real theater is common.

Thanks.

The rule with projectors with anamorphic lenses is that the farther you are, the less of a problem pincushioning will be and chroma abbrieviations. The results are much less noticable on a curved screen which are designed to get rid of pincushioning. The anamorphic lens should be as close to the projector lens as possible, even cms in distance and angle of lens may matter for optimal results.

Angling the prism as well as the offset of the projector (JVC can do vertical lens shift) can allow you to place the screen lower if you want to. I have a projecor with a fixed offset (Infocus x10) of about 135%, which positions the image for a 12 foot wide (2.35:1) screen (9 foot wide 16:9) about 2 feet below the projector's lens, the anamorphic lens should be in the same position as the projector's lens as long as it is angled properly.

You do know that the JVC cannot V stretch with 3d content? 2D content will work fine (I suspect you are not interested in 3D), but it will require a video processor to do it (Lumagen XD Radience updated may work).
jrp's Avatar jrp 08:39 PM 12-25-2010
Quote:
Originally Posted by Trogdor2010 View Post

You do know that the JVC cannot V stretch with 3d content? 2D content will work fine (I suspect you are not interested in 3D), but it will require a video processor to do it (Lumagen XD Radience updated may work).

The RadianceXD/XE/XS can all be firmware upgrade to support HDMI 1.4 3D, including anamorphic stretch/shrink for 2.35 (or any other aspect up to 2.5).

The anamorphic stretch/shrink is in the software already for Bluray and PS3 sources, and will be added soon for "half-res" formats such as cable/satellite.

The upgrade is $299 (for Lumagen branded Radiance units) through December 31, and then it will be $499.

All new Radiance sales include the HDMI 1.4 3D at no extra charge.

Contact us at sales@lumagen.com if you need more info.
coolrda's Avatar coolrda 04:39 PM 12-29-2010
You could add the Oppo 93 3D bluray/streaming player which has the ability to scale 3D BR's. As you know stereoscopic viewing with an A-Lens gives a needed lumens boost to the RS40. Also checkout the Xpand 103 glasses. I really like their performance.
230-SEAN's Avatar 230-SEAN 09:25 PM 12-29-2010
I am under the impression that the Oppo 93 is unable to stretch in 3d. I don't own one, so I'm not saying this is true, just what I have read several different times.

-Sean
RevelMN's Avatar RevelMN 11:54 PM 12-29-2010
Quote:
Originally Posted by 230-SEAN View Post

I am under the impression that the Oppo 93 is unable to stretch in 3d. I don't own one, so I'm not saying this is true, just what I have read several different times.

-Sean

You are correct, it does not V.stretch the image.
230-SEAN's Avatar 230-SEAN 12:22 AM 12-30-2010
Quote:
Originally Posted by RevelMN View Post

You are correct, it does not V.stretch the image.

Actually, now I'm told in another thread that it will stretch in 3d as long as you're not in "source direct" mode.

-Sean
Gotchaa's Avatar Gotchaa 09:39 PM 01-01-2011
Quote:
Originally Posted by 230-SEAN View Post

Actually, now I'm told in another thread that it will stretch in 3d as long as you're not in "source direct" mode.

-Sean

As long as a 3D title does not have BD-Java you can zoom/v-stretch
TreyS's Avatar TreyS 11:01 PM 01-04-2011
The 93 will let you turn off BD-Java. Others might as well...not sure.
Gotchaa's Avatar Gotchaa 02:17 AM 01-05-2011
Quote:
Originally Posted by TreyS View Post

The 93 will let you turn off BD-Java. Others might as well...not sure.

What does that mean? How do you turn BD-Java off if a Blu-ray Disc is authored with it?
CAVX's Avatar CAVX 05:57 AM 01-05-2011
Quote:
Originally Posted by Gotchaa View Post

What does that mean? How do you turn BD-Java off if a Blu-ray Disc is authored with it?

Yes please do tell.
Josh Z's Avatar Josh Z 10:33 AM 01-05-2011
I think he's confusing BD-Java with BD-Live. The latter is a branch of the former. You can turn off BD-Live if you don't want to connect to the internet, but you can't "turn off" Java if the disc is authored with it.
thebek's Avatar thebek 07:13 PM 01-10-2011
The RS40 was able to be mounted at 16' from the screen, which is a little over 2x the 16:9 width of the screen. From what I understand, that should work out with an potential future a-lens.

I found the screen's higher position on wall to be just fine, and immediately got used to it. I have berkline recliners, so its even better once reclined.

As for 3D, I have no equipment for it as of yet. If/when I do, I was expecting to just use 16x9 mode for 3D. The Lumagen looks like it may work for my situation but I don't like the high price.

I use a sagetv HD 300 to watch blue ray from folder format (BDMV). I don't know if it is going to support 3D. The Yamaha amp does not support 3D. So I'm guessing that something like the Lumigen RadianceMini would have to be placed after the Yamaha?
stanger89's Avatar stanger89 07:39 PM 01-10-2011
Quote:
Originally Posted by Gotchaa View Post

As long as a 3D title does not have BD-Java you can zoom/v-stretch

Doesn't pretty much every BD have BD-Java?
Mr Ian B's Avatar Mr Ian B 09:42 PM 01-10-2011
My current set up is a Directv Hd DVR box, hd dvd player and blu ray player all connected via hdmi to Pioneer Elite vsx-92(1.3 hdmi)receiver, then avr hdmi out to Dvdo vp50 video processor in hdmi and vp50 hdmi out to my JVCRS1 hdmi 1 input. This is due to my 2:35 screen with anamorphic lens. I am picking up a Pioneer vsx-1020 avr that is 1.4 compliant and will pass 3d signal to projector. The RS40 will be installed this Wednesday.

Couple of questions:

1- can I take the Dvdo video processor out of the play all together for 2d and let the RS40 do vertical stretch?

2- Should i let the Oppo 93 do the vertical stretch for the 3d blu rays as allowed and zoom for those that it can't?

3- how do I handle 3d Directv channels ?

4- should I leave it all status quo, just change the new receiver, keep the Dvdo in play and just use the 2nd Rs40 hdmi input for the Oppo 93 video hdmi out and use it's second hdmi to send audio out to new 1.4 hdmi Pioneer receiver?

Thanks,

Ian B
Arnies's Avatar Arnies 01:37 PM 01-11-2011
Ok I am getting a JVC X-9 installed on Monday with a 130" 2.35 screen and an anamorphic lens. I also have the panasonic 300 blu ray player for 3D. So let make sure I understand this

I cannot use the anamorphic lens with 3D since the X-9 does not stretch 3D

When watching a 3D movie from Netflix or from TV I must watch it in 16.9

I can only watch a 3D movie with an anamorphic lens if i get the OPPO 93 or The Radiance video processor

I am totally confused
Josh Z's Avatar Josh Z 03:03 PM 01-11-2011
Quote:
Originally Posted by Arnies View Post

Ok I am getting a JVC X-9 installed on Monday with a 130" 2.35 screen and an anamorphic lens. I also have the panasonic 300 blu ray player for 3D. So let make sure I understand this

I cannot use the anamorphic lens with 3D since the X-9 does not stretch 3D

When watching a 3D movie from Netflix or from TV I must watch it in 16.9

I can only watch a 3D movie with an anamorphic lens if i get the OPPO 93 or The Radiance video processor

I am totally confused

You've got it mostly right there, with one additional caveat that the OPPO 93 may not be able to perform the vertical stretch needed for an anamorphic lens with all discs. It can only do that if the disc is not authored with BD-Java. Unfortunately, many discs these days are authored with BD-Java.

The Radiance should be able to stretch anything.

A possible option for you might be to switch to the zoom method for CIH when watching 3D.
princenk007's Avatar princenk007 07:13 AM 01-13-2011
what is zoom method for CIH? How it works? i need some explanation. thank you.
Josh Z's Avatar Josh Z 09:10 AM 01-13-2011
Quote:
Originally Posted by princenk007 View Post

what is zoom method for CIH? How it works? i need some explanation. thank you.

Here is a tutorial on the different ways to do CIH:

http://www.highdefdigest.com/news/show/2798
Digital2004's Avatar Digital2004 08:32 AM 01-16-2011
question: do the RS/X JVC allow to keep a lens in front of the projector when projecting 1.85-1.77 materiel (2D), if you don't have a lens slider ?
like for instance with BENQ W6000: leave lens in front, hit on the remote 4:3
and you get displayed the proper format 1/77 but of course with less horizontal resolution.

thanks
Digital2004's Avatar Digital2004 07:43 AM 01-19-2011
up
Kelvin1965S's Avatar Kelvin1965S 01:15 PM 01-19-2011
My HD350 (RS10/HD250) has both the vertical stretch required for 2.35:1 with a lens and you can also turn VS off and change the aspect ratio from 16:9 to 4:3 which does the horizontal squeeze needed for 16:9 with the lens still in place. I understood that the new X3/7 (RS40/50) have more direct buttons to achieve this as on my HD350 it's a bit buried in the menu, so I use my Edge for these functions as it has direct buttons on it's remote.
Digital2004's Avatar Digital2004 07:28 AM 01-24-2011
thanks!
as for the x series, the issue remaining is aspect ratio control lacking when3D sce is sent to the pj
needs an external scaler 3D ready
if anyone can confirm
Glenn Baumann's Avatar Glenn Baumann 07:59 AM 01-24-2011
Quote:
Originally Posted by Kelvin1965S View Post

My HD350 (RS10/HD250) has both the vertical stretch required for 2.35:1 with a lens and you can also turn VS off and change the aspect ratio from 16:9 to 4:3 which does the horizontal squeeze needed for 16:9 with the lens still in place. I understood that the new X3/7 (RS40/50) have more direct buttons to achieve this as on my HD350 it's a bit buried in the menu, so I use my Edge for these functions as it has direct buttons on it's remote.

Kelvin,

So, you leave your ISCO II in place even when viewing 16:9 and 4:3 material?

In otherwords, you are NOT using a sled?


...Glenn
Kelvin1965S's Avatar Kelvin1965S 09:12 AM 01-24-2011
Quote:
Originally Posted by Glenn Baumann View Post

Kelvin,

So, you leave your ISCO II in place even when viewing 16:9 and 4:3 material?

In otherwords, you are NOT using a sled?


...Glenn

I'm not using a sled as I have a fixed stand which sits on a shelf in front of the projector: I only put the lens in place if the film is 2.35:1. I then use H-squeze for any menus and trailers as this is quick and convienient using the Edge's AR buttons.

If it's a 1.85:1 film, then I don't get the lens out and I adjust the projector's zoom and focus slightly to fill the screen height (and clip some velvet to the screen sides to act as side masking). I prefer to maximise the resolution for all ARs and have calibrated my projector for the two main modes so that the fL is exactly the same (95Lux which equals 13fL approx with my 1.5 gain screen).
knot_m3's Avatar knot_m3 01:54 AM 01-27-2011
For the RS40, if I have a maximum throw of 10' 10", what is the biggest 2.35:1 screen size I can get without using the lens?
adrian27's Avatar adrian27 12:40 PM 01-28-2011
Please I need some advice, any one of you know this lens thats is properly created for JVC dla projector the Panamorph FVX200J, ANY?, I'll use my (on the way) JVC dla x7 with an Elite Oprey dual format and the PJ placed in a stand at 50 inch from floor (not celiing mounted, and I wonder if this work for me

Thanks in advance
coolrda's Avatar coolrda 11:45 AM 01-30-2011
Quote:
Originally Posted by adrian27 View Post

Please I need some advice, any one of you know this lens thats is properly created for JVC dla projector the Panamorph FVX200J, ANY?, I'll use my (on the way) JVC dla x7 with an Elite Oprey dual format and the PJ placed in a stand at 50 inch from floor (not celiing mounted, and I wonder if this work for me

Thanks in advance

If I remember correctly that's a vertical compression lens that's been around in various forms for some time. I used this type of Panamorph lens for six years with good success. Problem is it, being a VC lens, won't give you maximum size for your room like an HE lens will.
adrian27's Avatar adrian27 05:05 AM 01-31-2011
thanks a lot for your answer, now I know that I need a lens like the UH 480 to get a CIH, a lens to expand not a lens to compress the image

Thanks again
stanger89's Avatar stanger89 05:39 AM 01-31-2011
You can do it with a VC lens, it's just very impractical to remove the lens for non-scope content.
1 2 

Up
Mobile  Desktop