Official JVC DILA-X500R / RS49U / RS4910U Owners Thread - Page 3 - AVS Forum | Home Theater Discussions And Reviews
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post #61 of 6381 Old 12-17-2013, 07:32 PM
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Quote:
Originally Posted by SOWK View Post

The lumen output.

I would hope so for that kind of $.

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post #62 of 6381 Old 12-18-2013, 01:20 AM
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I wonder if RS57 really has double the contrast then the RS49 ...
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post #63 of 6381 Old 12-18-2013, 02:41 AM - Thread Starter
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Only if you have a small enough screen or high enough gain to close the iris all the way. And probably not even then.

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post #64 of 6381 Old 12-18-2013, 05:02 AM
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Quote:
Originally Posted by Qualunquemente View Post

I wonder if RS57 really has double the contrast then the RS49 ...

If you need lumen output to be higher than 700 lumens, you are going to get close to the same contrast numbers on all JVCs. The get those numbers on the higher models, you need to close the iris down. For instance, if you was running a rs49 with the iris open, you should get close to 25000:1, and on the RS57, you should get 30,000:1, then on the RS67 about 35,000:1. Those are not very noticeable for the amount of money. But if you close them half way, its a difference but you get maybe 500 lumens at max. If you close the iris, you get about 250 lumens
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post #65 of 6381 Old 12-18-2013, 03:27 PM
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I was thinking About getting this but I'm pretty happy with my RS4810

I'll wait for true 4K to become common and I will upgrade then. Along with a bigger screen
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post #66 of 6381 Old 12-19-2013, 07:11 AM
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Quote:
Originally Posted by blee0120 View Post

If you need lumen output to be higher than 700 lumens, you are going to get close to the same contrast numbers on all JVCs. The get those numbers on the higher models, you need to close the iris down. For instance, if you was running a rs49 with the iris open, you should get close to 25000:1, and on the RS57, you should get 30,000:1, then on the RS67 about 35,000:1. Those are not very noticeable for the amount of money. But if you close them half way, its a difference but you get maybe 500 lumens at max. If you close the iris, you get about 250 lumens

I made some calculations based on my screen (Black Diamond 110" 21:9):
With 900 calibrated lumens I should get 60 cd/mq white so, yes, I will need Iris fully open or ... use the new dynamic iris function but i wonder if it really does make sense to use dynamic iris on a jvc : when a particular scene will make the iris fully close down blacks will probabibly became better then an Oled but whites should be like 7-8 cd/mq (in my case) like a grey 35 ire ... -__-

So I think I'd go for fixed iris fully open and so, as you say, an RS49 would be a wise choise.
Maybe rs57 is better in some other department then rs49 ? lens quality is the same ?

Another question : I have a RGB-LED vpr and never had a JVC : how muh cd/mq loss should I expect as lamp ages to the end ? half ? or even less ?
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post #67 of 6381 Old 12-19-2013, 03:57 PM
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Quote:
Originally Posted by Qualunquemente View Post

I made some calculations based on my screen (Black Diamond 110" 21:9):
With 900 calibrated lumens I should get 60 cd/mq white so, yes, I will need Iris fully open or ... use the new dynamic iris function but i wonder if it really does make sense to use dynamic iris on a jvc : when a particular scene will make the iris fully close down blacks will probabibly became better then an Oled but whites should be like 7-8 cd/mq (in my case) like a grey 35 ire ... -__-

So I think I'd go for fixed iris fully open and so, as you say, an RS49 would be a wise choise.
Maybe rs57 is better in some other department then rs49 ? lens quality is the same ?

Another question : I have a RGB-LED vpr and never had a JVC : how muh cd/mq loss should I expect as lamp ages to the end ? half ? or even less ?

they are using the same lens. I have no idea about the lamp
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post #68 of 6381 Old 12-19-2013, 04:29 PM
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when jvc goes to true 4k projectors do you guys think they will have 4th gen. 8k eshift?
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post #69 of 6381 Old 12-19-2013, 04:38 PM - Thread Starter
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Not right away, that's my thought.

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post #70 of 6381 Old 12-19-2013, 04:44 PM
 
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They need something for people to upgrade to the year after. 4K first then they'll add the eshift the following year.
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post #71 of 6381 Old 12-19-2013, 04:54 PM
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Quote:
Originally Posted by larryep View Post

when jvc goes to true 4k projectors do you guys think they will have 4th gen. 8k eshift?

They are going to have to do some type of gimmick because I don't know if they can get a bright, sharp image like Sony has been doing. They can't come with a 800-900 max lumen 4K projector. If they had eshift 8K, even though it will be all gimmick, they will have something to compete. Unless that do something to make it much less. I think they will impress a lot of people if they can get a 4K unit with 1200 calibrated lumens with their native contrast.
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post #72 of 6381 Old 12-19-2013, 05:00 PM
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I would think JVC's first true 4k projectors would have to be brighter to accommodate the larger screens that 4k is meant for. 1200 calibrated lumens minimum with the same native contrast we are used to now would be an awesome start.

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post #73 of 6381 Old 12-19-2013, 05:23 PM - Thread Starter
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Do we still not have an owner?

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post #74 of 6381 Old 12-19-2013, 05:29 PM
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Nope-They're still somewhere between China and here most likely.biggrin.gif

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post #75 of 6381 Old 12-19-2013, 05:29 PM
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I have been told there is a very good chance I will get it before Christmas. In fact they said they would air ship on their dime. This extra time has given me a chance to hang more triple velvet and a few other little improvements.

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post #76 of 6381 Old 12-19-2013, 05:33 PM
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My dealer today said his distributor would have the new JVC's tomorrow. So, I will not get my X700R before Xmas but I am hopeful for before the first of the year.

Mike

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post #77 of 6381 Old 12-19-2013, 10:04 PM
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Quote:
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My dealer today said his distributor would have the new JVC's tomorrow. So, I will not get my X700R before Xmas but I am hopeful for before the first of the year.

Mike

That's what my dealer is being told by his distributor as well, so hopefully some of us will soon have nothing but positive reports on these new models.wink.gif

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post #78 of 6381 Old 12-22-2013, 12:07 PM
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I'm also waiting with all of you. In anticipation, I need to modify my DIY mount. I think I have found the proper locations for my attachment but does anyone know what the thread size is? I want to have the proper hardware and I can buy a new piece of 1/4" plexiglass (or maybe 3/16" aluminum since this JVC is heavier than my old Ae900.) Thanks.
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post #79 of 6381 Old 12-23-2013, 06:58 AM
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OK, the first person who receives this PLEASE post your initial impressions of the dynamic iris on a dark movie like Harry Potter Deathly Hallows 2. If it doesn't pump this should be an untouchable image...
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post #80 of 6381 Old 12-23-2013, 07:00 AM - Thread Starter
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or the intelligent Iris doesn't work, one of the two... lol.

Can't pump if it doesn't work. biggrin.gif

(from what I read, the Iris is not in "real" time, and will cause gamma shifts near black when in use. This is what I would call un-usable if it is the same in final retail product.)

Although even if it doesn't work, the JVC's native is so good it wont really matter anyhow.

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post #81 of 6381 Old 12-23-2013, 07:21 AM
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So IF JVC sh*t the bed with their DI implementation, what are the chances there could be a software upgrade at some later point?

Hopefully it will be better than that early preproduction review we are concerned about. Isn't there an option to run the DI with no gamma manipulation as well?
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post #82 of 6381 Old 12-23-2013, 07:44 AM
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Dam, won't be getting my PJ tomorrow. Originally it was going to be air shipped today. I guess there is an Ice storm down south and it has delayed the shipments. Further more my guy can't get a hold of JVC.

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post #83 of 6381 Old 12-23-2013, 10:52 AM
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Originally Posted by seanbryan View Post

Hopefully it will be better than that early preproduction review we are concerned about.

Got a link?

I missed any mention of issues with the DI; in fact people wondered if it wasn't even turned on in the show samples.

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post #84 of 6381 Old 12-23-2013, 12:36 PM
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Just talked to Mike at AVS and purchased the pre-order! (today's the last day FOR SURE as he said they got a pallet with 100 or so 4910's so the deal is off at COB today) He also said his shipping guys were working like crazy to get every single pre-order out today (except mine, as I requested special shipping instructions due to living in the stix-Pony Express!). Anyway, this is my most expensive pj purchase yet and I hope it lasts me until 4K gets super cheap. I'm excited about every single new feature on this pj...I hope the e-shift3 makes it close to as sharp as my past 3 DLPs (optomaHD30, infocus8602, Sim2HT3K), even if not, I only watch movies so the huge bump in contrast should FAR outweigh the difference in sharpness...lets hope! Wondering if anyone who gets theirs first and does the auto-calibration could post their experienes as this will probably be the route I go.
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post #85 of 6381 Old 12-23-2013, 12:48 PM
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Got a link?

I missed any mention of issues with the DI; in fact people wondered if it wasn't even turned on in the show samples.

From the "new range" thread

https://www.avsforum.com/t/1486011/new-range-jvc-2014/2340#post_24102132
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post #86 of 6381 Old 12-23-2013, 01:13 PM
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Originally Posted by seanbryan View Post

From the "new range" thread

https://www.avsforum.com/t/1486011/new-range-jvc-2014/2340#post_24102132

That review was on a pre-production unit.rolleyes.gif

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post #87 of 6381 Old 12-23-2013, 01:54 PM
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Thanks, Sean, somehow I missed that.

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post #88 of 6381 Old 12-23-2013, 04:53 PM
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That review was on a pre-production unit.rolleyes.gif

What's with the "roll eyes"? I said it was a preproduction unit.

And several reliable forum members saw the JVCs at CEDIA and did not see any problems with the iris. So yes, hopefully the implementation is better on release units than from the preproduction review.
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post #89 of 6381 Old 12-23-2013, 06:13 PM
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What's with the "roll eyes"? I said it was a preproduction unit.

And several reliable forum members saw the JVCs at CEDIA and did not see any problems with the iris. So yes, hopefully the implementation is better on release units than from the preproduction review.

Sorry. Thought you were dooming the iris already. My bad. I have a X500R on order, so I'm being optimistically defensive..smile.gif

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post #90 of 6381 Old 12-23-2013, 06:43 PM
 
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Sorry. Thought you were dooming the iris already. My bad. I have a X500R on order, so I'm being optimistically defensive..smile.gif

Even if it doesn't function ideally you can disable it and still get reference level contrast and black levels. Unlike every other digital front projection technology that relies on a DI to simply compete with JVCs native contrast and black level you don't have to be depent upon it performing optimally to get a great looking image.

Though it would be nice for it work as well as a Sony/Sim2/Planar/Runco implementation. tongue.gif
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