JVC LX-UH1 New 4K projector - Page 22 - AVS Forum | Home Theater Discussions And Reviews
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post #631 of 662 Old 09-06-2018, 07:33 AM
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Quote:
Originally Posted by sage11x View Post
I considered this for awhile way back when Panasonic was still selling projectors. I guess my question is this: what do you do when you have imax or 70mm material that you want to display in a larger format? While I admit having a larger 2.35 screen would be nice I think I would miss watching nature documentaries like PE2 and BP2 as well as all of the imax scenes in the big theatrical releases in that larger, more immersive size. I almost feel like CIW makes more sense for today’s content.



CIW ONLY makes sense when someone has the room height and the seating configuration to allow for the size 16:9 image the demand while also providing a immersive Widescreen presentation. Trouble is that the larger 16:9 you go, the more prevalent the amount of unused Screen Real Estate you'll have.



If your Screen is used for basic Family entertainment (...daily TV...) where there is a preponderance of 16:9 content....then yeah...16:9 makes sense....as large as possible.


But Dedicated Theater owners need to get over TV. While it's great to wander into the Theater to Binge watch Dexter or enjoy a Nature Documentary, robbing ones' self of the 2.39:1 experience that almost every BluRay or HD-4K Stream provides is pretty much a case of self flagellation.


People use the IMax scenario too easily to justify not considering CHI, when frankly,only a very few can ever come close to even having a 16:9 screen that can do such a format justice.


My solution is, and always will be while needed, to smooth and paint the Wall for screen use, and then position the PJ (...that has Lens Memory...) so that someone can have several ideally sized formats with none showing unused screen area.


Framed Screens are just so limiting in nature...especially with today's varied Formats.
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post #632 of 662 Old 09-06-2018, 07:45 AM
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Quote:
Originally Posted by sage11x View Post
I considered this for awhile way back when Panasonic was still selling projectors. I guess my question is this: what do you do when you have imax or 70mm material that you want to display in a larger format? While I admit having a larger 2.35 screen would be nice I think I would miss watching nature documentaries like PE2 and BP2 as well as all of the imax scenes in the big theatrical releases in that larger, more immersive size. I almost feel like CIW makes more sense for today’s content.
About 90 percent of the movies I watch are in 2.4:1 ratio so that works for me to get most of my movies with a big image and widescreen with no black bars. I made custom masking for 16:9 and 2.4:1.
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post #633 of 662 Old 09-06-2018, 11:08 AM
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Quote:
Originally Posted by MississippiMan View Post
CIW ONLY makes sense when someone has the room height and the seating configuration to allow for the size 16:9 image the demand while also providing a immersive Widescreen presentation. Trouble is that the larger 16:9 you go, the more prevalent the amount of unused Screen Real Estate you'll have.



If your Screen is used for basic Family entertainment (...daily TV...) where there is a preponderance of 16:9 content....then yeah...16:9 makes sense....as large as possible.


But Dedicated Theater owners need to get over TV. While it's great to wander into the Theater to Binge watch Dexter or enjoy a Nature Documentary, robbing ones' self of the 2.39:1 experience that almost every BluRay or HD-4K Stream provides is pretty much a case of self flagellation.


People use the IMax scenario too easily to justify not considering CHI, when frankly,only a very few can ever come close to even having a 16:9 screen that can do such a format justice.


My solution is, and always will be while needed, to smooth and paint the Wall for screen use, and then position the PJ (...that has Lens Memory...) so that someone can have several ideally sized formats with none showing unused screen area.


Framed Screens are just so limiting in nature...especially with today's varied Formats.


Well you bring up a good point in wall real estate. The other issue I ran into for 2.35 is I like to mount my screen low. To get an appreciably larger 2.35 screen I would need to place my speakers even farther apart than they are right now. For reference I sit about 8 feet away from a 100” 16:9 screen.

I love the idea of a CIH setup but I guess I’m just not there yet.

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post #634 of 662 Old 09-06-2018, 11:41 AM
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Quote:
Originally Posted by WynsWrld98 View Post
About 90 percent of the movies I watch are in 2.4:1 ratio so that works for me to get most of my movies with a big image and widescreen with no black bars. I made custom masking for 16:9 and 2.4:1.

So what is your custom masking method?
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post #635 of 662 Old 09-06-2018, 08:34 PM
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Originally Posted by tanman View Post
So what is your custom masking method?
A bit hard to explain. The basics are it's a DIY thin wood framed open box with black velvet fabric stretched over it and stapled to back of frame. I use that for the top and bottom of the image masking to give it a 2.4:1 ratio. I made the same type of masking for REMOVABLE left/right side masking that I sized very tight so it stays between the top and bottom masking without any adhesive, nails, just friction holds the side panels in place when I'm watching 16:9 programming, just remove them when watching 2.4:1 programming which is a snap having lens memory for zoom, focus and vertical lens shift. There is no going back!
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post #636 of 662 Old 09-07-2018, 06:31 AM
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Quote:
Originally Posted by WynsWrld98 View Post
A bit hard to explain. The basics are it's a DIY thin wood framed open box with black velvet fabric stretched over it and stapled to back of frame. I use that for the top and bottom of the image masking to give it a 2.4:1 ratio. I made the same type of masking for REMOVABLE left/right side masking that I sized very tight so it stays between the top and bottom masking without any adhesive, nails, just friction holds the side panels in place when I'm watching 16:9 programming, just remove them when watching 2.4:1 programming which is a snap having lens memory for zoom, focus and vertical lens shift. There is no going back!
+1 on the "no going back after lens memory".
Years ago, AVS member Craig Peer inspired me to try his answer to the variable masking dilema:
TWO SCREENS
Quality electric drop screens have become available for a reasonable amount. When you count the time to R&D masking (not to mention building it), two screens is a cost effective and elegant solution ("Thanks Craig").
I just wish that the DLP makers would step up and offer a 4K DLP with lens memory
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post #637 of 662 Old 09-07-2018, 02:13 PM
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Quote:
Originally Posted by humbland View Post
+1 on the "no going back after lens memory".
Years ago, AVS member Craig Peer inspired me to try his answer to the variable masking dilema:
TWO SCREENS
Quality electric drop screens have become available for a reasonable amount. When you count the time to R&D masking (not to mention building it), two screens is a cost effective and elegant solution ("Thanks Craig").
I just wish that the DLP makers would step up and offer a 4K DLP with lens memory
My approach is must less expensive than having two screens, less work to iinstall and results in a wide black velvet masking frame that looks beautiful.

I agree 100% about 4K/faux 4K DLP projectors being a non-starter due to no lens memory (and I believe impossible in the current ones due to not enough vertical lens shift).
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post #638 of 662 Old 09-07-2018, 05:30 PM
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I dinnea ken...why not max the screen width for 16-9 and then just add an upper and lower mask for 2.4-1 content and leave the projector as is?
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post #639 of 662 Old 09-08-2018, 11:26 AM
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^^DunMunro: Your idea is the same as WynsWrld98 but instead of side masking you add top and bottom. At present I do that with my 16:9 screen. I just move it up and add a mask to the bottom portion but Craig Peer's idea is better with dual screens and the prices are really getting to a viable option. Another idea would be to use a large TV (16:9) 75"+ behind the projector screen of 2.4:1.
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post #640 of 662 Old 09-09-2018, 12:25 AM
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I understand this doesnt have a lens memory, but it still has powered lens zoom/shift... does anyone know if this projector would have the capabilitied to have enough zoom and shift to go from wide to scope from 14.9' away on a 125" diag. Scope screen?

Its the only dlp i know of at this price with both V/H shift and powered lens, but not sure if zoom enough?
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post #641 of 662 Old 09-09-2018, 12:37 AM
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I spoke with JVC. They confirmed that they are OEMing without doing to much to design. It fits a price point for some of their customers.
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post #642 of 662 Old 09-09-2018, 09:27 AM
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Quote:
Originally Posted by Ericglo View Post
I spoke with JVC. They confirmed that they are OEMing without doing to much to design. It fits a price point for some of their customers.
I was telling that they weren't demoing this one...

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post #643 of 662 Old 09-17-2018, 07:04 PM
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Any current owners of this projector, could you kindly take a pic of Javs QBF 4k im age and please post. keen to see what perfect convergence brings to the screen..




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post #644 of 662 Old 10-12-2018, 09:49 AM
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Any new reviews on this projector? This projector doesn't get much love, likely because of the price.

Due to my room layout and need for a fair bit of lens shift, I think the LX-UH1 might be my best option... I just wish the price was more competitive.

I would opt for something like the Epson 4010, but the lack of 18gbs HDMI support kills it and some of the others for me.

Any other options I am missing (I don't need 3D)? The minimal lens shift provided with the Optoma UHD50 would not be enough.
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post #645 of 662 Old 01-24-2019, 10:10 AM
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Hi, one of my friend have this projector but he have problem with iris, is very noisy and it seems to me and him that the image on one side is slightly out of focused. Does some one know if this is HW problem or its normal?
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post #646 of 662 Old 01-25-2019, 02:30 PM
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It is a known issue and a JVC fault. Return for replacement.

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post #647 of 662 Old 06-11-2019, 12:58 PM
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Thanks for the review. Online reviews of the UH1 have been very favourable.


I looked at the UH1 but was put off by the hefty price for another lamp. The UH1 doesn't use dynamic lamp dimming and consequently lamp life in high mode is about 4K hrs, IIRC.
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post #648 of 662 Old 06-12-2019, 07:41 PM
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Here are some screen shots from my JVC LX-UH1 Projector.
I have a 120” Grandview white screen 1.0 gain. Projo is ceiling mounted 16 feet away. There is a white drop ceiling and ambient light is reflecting off of it.
Note The following screen shots are realistic approximations of the projected image. But the limitations of my IPad camera mean that the full clarity, richness of colour, details in texture, skin, and contrast looks better in person than in these images. Still, I think these images are sufficient to dispel the common perception that DLP projo’s lack in contrast and/or colour. That my indeed have been true of older or inferior DLP projo’s, but I submit that it is not true with the UH1. Given JVC’s renoun Rep as the ‘OLEDs of projectors’, their class leading native contrast ratios on their D-ILA (LCoS) models, I did not think JVC would put their name on something that would tarnish that rep. I went to the local retailer a year ago thinking I would end up with the Optoma UHD65 and or, possibly the Epson 5040UB. However, in side by side comparisons, I was so impressed with the JVC and so underwhelmed with the Optoma or Epson, I purchased the UH1.
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post #649 of 662 Old 06-13-2019, 10:51 AM
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Quote:
Originally Posted by LX-UH1 View Post
Still, I think these images are sufficient to dispel the common perception that DLP projo’s lack in contrast and/or colour. That my indeed have been true of older or inferior DLP projo’s, but I submit that it is not true with the UH1. Given JVC’s renoun Rep as the ‘OLEDs of projectors’, their class leading native contrast ratios on their D-ILA (LCoS) models, I did not think JVC would put their name on something that would tarnish that rep.
Well, yes and no... It does not go black. Period. It throws a contrasty image that is sharp and colorful. But I use a neutral density filter to watch movies and TV all the time. But even in a dark scene or total blackness there is enough light to do shadow puppets on the screen! And there is a gray ("black" on this DLP) ring around the screen because I do not have a large enough black border around my screen. This ring is outside of the 16x9 picture area.

I also have a white ceiling and there is a light spill ring on the ceiling that is from the projector - way out of the picture area. I have to use a black piece of aluminum foil to mask the ceiling. It is 360°, but the bottom and sides are not noticeable in my room.

I really have to get a new JVC DILA soon. My previous one died and this was all JVC had in stock at the time. I do not regret the purchase - except for NO 3D! I do miss that...

Oh, and it is noisy - fan and iris.
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post #650 of 662 Old 06-17-2019, 08:33 AM
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Question about HDR in Projector

Hi there,

I have a JVC LX-UH1 projector, which will accept 4K HDR.


Is it normal for the projector to be really dark/dim when in this mode? It seems like SDR video is much brighter overall.

If this is normal, is there any way to work around this?

My media center PC runs JRiver, which uses MADVR. There is a calibration option in there, which I think could help, but not really sure.
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post #651 of 662 Old 06-17-2019, 09:19 AM
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Projectors are not capable of actually displaying HDR because their peak brightness is too low. The very dark image is normal. Madvr can tone map the image to a better range closer to what the projector can handle. The simplest is to just convert the HDR to SDR. It gets more complicated with luts tables etc. Newer projectors have better tone mapping builtin and some Blue Ray players like the Panasonic do a very good job also.

"Smart enough to know better, to old to care" ------ Dedicated Bat Cave Home Theater, JVC RS49U/Mitsubishi HC7900DW Projector, 110" 16:9 Jamestown screen with variable power masking for CIW 2.50:1 to 16:9, Marantz 7009 with 7.1.4 Atmos with Ohm mains,3 DIY Subs (2 15" (1 ported, 1 sealed and a 12" 4th order bandpass), 1 DIY butt kicker, Custom Built HTPC, 18TB DroboFS NAS
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post #652 of 662 Old 06-17-2019, 09:23 AM
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How would you convert HDR to SDR? Is this done from the PJ or from the player?
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post #653 of 662 Old 06-17-2019, 11:02 AM
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The settings are in Madvr under the HDR tab. I don't know all the details because neither of my projector will accept an HDR signal so I just use the setting "let Madvr decide" and it converts HDR to SDR. HDR in projectors has very little benefit and is more of a PIA for a lot of users but they are slowly getting better. HDR was designed for high NIT flat screens as even commercial laser projectors struggle with it.

"Smart enough to know better, to old to care" ------ Dedicated Bat Cave Home Theater, JVC RS49U/Mitsubishi HC7900DW Projector, 110" 16:9 Jamestown screen with variable power masking for CIW 2.50:1 to 16:9, Marantz 7009 with 7.1.4 Atmos with Ohm mains,3 DIY Subs (2 15" (1 ported, 1 sealed and a 12" 4th order bandpass), 1 DIY butt kicker, Custom Built HTPC, 18TB DroboFS NAS
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post #654 of 662 Old 06-17-2019, 12:15 PM
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Thanks- I'll give that a shot and see how it look.

Appreciate it =)
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post #655 of 662 Old 06-17-2019, 02:06 PM
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HDR works quite well in projectors - actually very well. My Sony UBP-X700 4k BD player shows a much better image when displayed on an HDR capable PJ (I tested it on a Viewsonic PX-747) and is provides noticeably better contrast, colour and HDR effect. Your UH-1 probably has several EOTF levels for HDR playback so it's important to adjust these to your preference. I can't speak to the use of MADVR because I don't use it.

This shows the effect of different EOTF levels on the PX-747:



although in the above the differences are not day and night, they are still noticeable.


and in my thread here you can see some other examples of HDR on the PX-747:


https://www.avsforum.com/forum/199-f...l#post58161414
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post #656 of 662 Old 06-17-2019, 02:18 PM
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I'll try HDR and HDR --> SDR and see how it reacts.

I had the PJ sitting on the side for a while (haven't finished my room just yet), so I plugged it in the other day and noticed that HDR content was very dark.

I'll try the EOTF settings and see what works for me.

Thanks again - but if there is any other advice please share =)
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post #657 of 662 Old 06-17-2019, 02:40 PM
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Quote:
Originally Posted by cowbodude99 View Post
I'll try HDR and HDR --> SDR and see how it reacts.

I had the PJ sitting on the side for a while (haven't finished my room just yet), so I plugged it in the other day and noticed that HDR content was very dark.

I'll try the EOTF settings and see what works for me.

Thanks again - but if there is any other advice please share =)
If you're in the USA then the X700 BD player will include a lot of streaming apps (X-700 Canada is missing Primevideo and Crave) for 4K streamed content and it works very well for 4K HDR streaming. The X-700 also has an HDR to SDR conversion for displaying BD HDR content on an SDR projector.

I found that when displaying HDR from the X-700 that I could use 2.4 Gamma on the PX-747 and high EOTF for most dark content rather than having to reduce gamma to ~2.0 when displaying the same content in SDR. It also helps to find some 4K HDR test patterns to adjust colour, contrast and brightness for your screen and room - and save these into a user setting.

I know from using ripped 1080P content that there can be a considerable reduction in quality over a BD depending on the degree of data compression.
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post #658 of 662 Old 06-17-2019, 05:37 PM
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Quote:
Originally Posted by cowbodude99 View Post
Hi there,
I have a JVC LX-UH1 projector, which will accept 4K HDR.
Is it normal for the projector to be really dark/dim when in this mode? It seems like SDR video is much brighter overall.
If this is normal, is there any way to work around this?
My media center PC runs JRiver, which uses MADVR. There is a calibration option in there, which I think could help, but not really sure.
Not quite sure why yours is dark. Did you use HDR test patterns to set your black and white levels? Mine looks amazing. Also, the projector should switch to high lamp when in HDR.
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post #659 of 662 Old 06-17-2019, 07:52 PM
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Where do you run the test patterns? I haven’t tried calibrating yet.
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post #660 of 662 Old 06-18-2019, 09:37 PM
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Quote:
Originally Posted by cowbodude99 View Post
Where do you run the test patterns? I haven’t tried calibrating yet.
Either on my Oppo on disc or on a USB stick or hard drive. HDR-10 available from:

https://www.diversifiedvideosolutions.com/products.html

and a thread to read:

https://www.avsforum.com/forum/139-d...-patterns.html
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