[darryl b]

anyone have any info on this line of projectors? it is a three chip dila wtih native resolution of 1080p. spec 1000 lumens and contrast 2000. anyone watched any movies with this thing?

 

[hessel holland]

MSRP $29,995

 

[Digital2004]

link ? thnks

 

[Digital2004]

 http://www.vidikron.com/vision80.html

so it's an HD2K/Faroudja combo, customized. like some do with others.

wished JVC had more "really HTheater oriented" products.

 

[darryl b]

they also have the 100 model which is a 3 chip dlp with 2000:1 contrast and 3500 lumens. why no discussion on these babies?

 

[Tryg]

why would Runco market this projector in their "lesser" Vidikron line?

It beats 99 percent of the Runco projectors.



They must be so politically invested in DLP they cant afford to maybe..... use something better?

 

[Alan Gouger]

The new Runco scalers do everything including color, gray scale calibration/custom aspect ratio/picture settings independent for each input. This would be an ideal system for anyone doing 235:1 constant height setups.

The projector coupled with this scaler make this a real HT combo.

 

[wm]

Their claiming 1050 ANSI lumens - if this is really the JVC HD2K I'd like to see how they manage that!

 

[Ohlson]

Tryg

99 percent?

wm

They do not!

They claim 491 ANSI lumen when calibrated and 2100:1

 

[Tryg]

Gentleman, I'm starting a new business idea. I will sell sell stick on plaques that say "Criticized by Tryg".


Any product that can withstand this metric deserves customers.


JVC would get it

Faroudja would get it

Vidikron would not 1000 lumens

 

[darinp2]

Quote:

Originally posted by wm Their claiming 1050 ANSI lumens - if this is really the JVC HD2K I'd like to see how they manage that!

I agree. This claim is with unbalanced colors, but even then seems pretty high. They are at 491 lumens with d65. I admit I haven't tried blowing all the colors out on my HD2K to see what it would do.


I'm really confused about their CSMS numbers, since they have said a 72" wide StudioTek 130 screen in the past and I calculate more like 250 lumens given their ft-lamberts claim.


I am happy to see that they are finally mentioning on/off CR after pretty much dismissing it in the past.


--Darin

 

[Jon_Patrick]

wow.


i love my pj, but if i was going to light up a screen of more than 144 this would be the ticket. 1050 lums and 2100:1 contrast. Runco is usually pretty accurate with specs.

 

[wm]

Well, the web page says 1050 ANSI Lumens in big print in two places, and 491 lumens (and where did they get that number?) in small print in the side bar. Clever typo? Also, I see NO mention of "d65" anywhere on that page. 6500K is NOT d65, you guys should understand that by now. I can do all kinds of things and have it measure 6500K, but be a LONG way from white!

 

[Jon_Patrick]

hehehee good catch wm, 491 lum is 17 lum less than i am geting out of my hd2k.

 

[darryl b]

i posted to start this thread. the feedback makes interesting reading, but i'm just an ordinary guy when it comes to this stuff; you all are going way over my head. when it first came out i bought an infocus 7200 because i like movies. now i really like movies and i want to enjoy them with the best technology that an ordinary guy can get. has anyone seen the Visionâ„¢ Model 80 D-ILAâ„¢ Projector? is this real progress compared to my 7200? its 1080p, would anyone pay this price right now or wait?

 

[Tryg]

Yes most of us have. It's called the JVC DLA-HD2k.


Whether to buy or wait is somewhat of a personal decision isn't it?

 

[darinp2]

Quote:

Originally posted by wm Well, the web page says 1050 ANSI Lumens in big print in two places, and 491 lumens (and where did they get that number?) in small print in the side bar. Clever typo?

They have it hidden pretty well. Basically, I had to go figure out what the CSMS system is to find out what their definitions are. I found a link that went to here . This article explains how they get "ANSI Lumens" and "Home Theater ANSI Lumens" for their projectors. I find this all rather interesting considering that they were the ones who came up with this system and my understanding is that their reason given was to keep people from being misled. Then the 1050 number is the prominent one and people looking at this have to have some knowledge to know they aren't really going to be getting this when things are setup properly in an HT environment.
Quote:

Also, I see NO mention of "d65" anywhere on that page. 6500K is NOT d65, you guys should understand that by now. I can do all kinds of things and have it measure 6500K, but be a LONG way from white!

You're right. The article I pointed to does only say 6500K, but I would be surprised if Runco isn't aiming for d65 when they calibrate these. That could of course be the case though.


--Darin

 

[ghibliss]

For the 2100:1 contrast ratio to be correct using the 18.1 fL value given for the brightness level measured with the PhotoResearch "Spectra Colorimeter" they would need to get a measured Black level of .0086 fL which is darker then I believe a DILA projector is capable of. Has anyone confirmed this ? This is incredibly dark !


What are they measuring "0 ire" Black with as a PhotoResearch PR-650 which I assume is the model they are measuring the projector with will not read down to anywhere near this low a light level.

 

[Ohlson]

People usually measure cr with the probe facing the lens and pretty close to get accurate low level readings.

 

[ghibliss]

The PhotoResearch PR-650 needs to have the "CR-650" cosine diffuser to measure the projector pointing it at the lens using it with an accessory calibration specifically for it. I have one and can tell you that you still would not have adequate light to perform this test! Measuring using the Reference reflectance standard from Labsphere (I have one of these as well) even at a close distance would also provide values which would not be usable for this test. You must take both the 100 ire and 0 ire readings from the exact same distance to have a relative ratio for the contrast ratio value to be correct.


To properly measure the contrast ratio accurately to this low a light level requires a meter that can read to at least one decade lower than the light level being reported by the meter (ie to accurately read .001 requires a meter accuracy of .0001) Meters of this caliber are prohibitively expensive. Measurement accuracy of light to the ten thousandth of a fL is like trying to measure a Black Hole in outerspace !


My UDT S370 Optometer with a properly calibrated detector can measure to an accuracy of .003 and this is simply a glorified light meter which does not measure color. This analyzer sells for close to $5,000.00 with the detector configured for this type of measurement. The point of all of this is that even if the manufacturers attempt to qualify the light output and specifications for home theater applications the supplied information can be very misleading.


Users place very high value on Contrast Ratio numbers for projectors which if they were in fact accurate would not be a bad thing to look at. Since most specifications for this are not even remotely accurate in the real world users should be somewhat skeptical of this information and look at the picture quality and judge it with their eyes to see if it meets with their approval.