Jvc Dla Hd1 Owners Discussion Thread

[Guest eandoz]

Wow,2.35m width as maximum?I must be doing something wrong! someone correct me if I am.

They way I see it is that you work the ft lamberts off the appropriate 16:9 screen which in this case is 120" diagonal,

then take about 5% off for light loss for the lens and it should equate to the same size in scope,with the lens added is 3.3 wide.why am I wrong?

There is no way in hell I am building a dedicated theatre room and putting a 100" screen in there,the darn thing will look like a plasma on my wall.

I could go H.P however,I am concerned about elevated blacks.

Gino,

haven't bought the screen yet,as you can see I'm trying to work this one out.What's rock bottom on your screen?and what were the dimensions again?

Dave

[benthx]

Wow,2.35m width as maximum?I must be doing something wrong! someone correct me if I am.

They way I see it is that you work the ft lamberts off the appropriate 16:9 screen which in this case is 120" diagonal,

then take about 5% off for light loss for the lens and it should equate to the same size in scope,with the lens added is 3.3 wide.why am I wrong?

There is no way in hell I am building a dedicated theatre room and putting a 100" screen in there,the darn thing will look like a plasma on my wall.

I could go H.P however,I am concerned about elevated blacks.

Gino,

haven't bought the screen yet,as you can see I'm trying to work this one out.What's rock bottom on your screen?and what were the dimensions again?

Dave

Yes exactly my thoughts endoz about having a plasma screen on the wall. Might be worth a trip to Perth and you can see how it fairs for itself. Then you can putthe naysayers to rest. The JVC is a different creature compared to all the rest. Unless you have seen one with your own eyes then all other coments is just guesstomation.

Ben

[The_Preacher1973]

Your going to struggle to light up a screen that big with the JVC. Especially once you put an anamorphic lens in front of it - you will be lucky to get 8 fts lambert with a tail wind. Its only around 700 lumens for the JVC - which means around 500 lumens calibrated. Your image is going to be dull!

I would drop the size and thus increase the ft. lamberts if I were you. 12 ft. lamberts is the minimum acceptable and bottom line.. more is better. This is not a projector for a screen that big - if you want a screen that big you should have very deep pockets if you want a quality image.

Edit - quick math shows you will be lucky to even get 8 ft lambert on a 3.3m wide screen with this projector and an anamorphic lens. Personally.. [and my projector is roughly the same brightness as the JVC on paper - a Marantz VP11S1 1080p DLP] I wouldnt go ANY bigger than 2.35m wide and thats in a totally light controlled room with shadow box.

The specs for the JVC are a bit different WORX. JVC's quoted lumens are claibrated at D65 on normal (high) lamp at minimum throw. Several sources have verified this.

As you point out the Marantz only puts out approximately 500 lumens when calibrated @ D65, so the JVC is approximately 40% brighter than the Marantz (as well as having 3 times the on/off contrast ratio, no motion dithering, no RBE).

From my calculations, using an anamorphic lens and allowing 5% loss due to this, using a 1.3 gain screen I get 17.5 FtL on normal lamp mode and 14.9 FtL on economy lamp mode (assuming minimum throw). So you could probably (just) get away with a screen of this size if you ount the projector at minimum throw, use economy lamp mode for the first 250 hours and normal for the remaining 750 hours. At the 1000 hour mark though you will be down around the 8 FtL mark.

[JoshH]

The specs for the JVC are a bit different WORX. JVC's quoted lumens are claibrated at D65 on normal (high) lamp at minimum throw. Several sources have verified this.

I actually forgot about that - its still pushing the envelope though IMO.

(as well as having 3 times the on/off contrast ratio, no motion dithering, no RBE).

The fish aren't biting today

Edit - but I almost bit!

[The_Preacher1973]

The fish aren't biting today

Edit - but I almost bit!

[The_Preacher1973]

I actually forgot about that - its still pushing the envelope though IMO.

I agree. It's certainly pushing the envelope and I wouldn't do it unless I could set the room up with dark curtains on all walls and a dark ceiling. I don't think it would be bright enough to deal with a white wall/ceiling room.

[DuyKha]

I agree. It's certainly pushing the envelope and I wouldn't do it unless I could set the room up with dark curtains on all walls and a dark ceiling. I don't think it would be bright enough to deal with a white wall/ceiling room.

Guys,

I'm going a 120" diag 1.2 gain scope screen - will this be ok brightness wise? The viewing area will be 2.806m x 1.184 m giving an area of 3.32 square metres (or 25.84 sq feet). This will be similar in area to a 110" diag 16:9 screen (2.440m x 1.372m or 3.35m2).

When viewing 2.35:1 movies I will achieve about 30% extra brightness when compared to the 110" 16:9 screen.

My estimate of the ftl is about 23 FtL: 520 lumens as per Cine4home (mid-zoom, D65 and normal lamp); 1.2 gain and viewing area of 25.84 sq feet; 5% light loss from anamorphic lens; and new lamp.

All the talk about pushing the envelope got me worried - just wanted to check

[norpus]

Guys,

I'm going a 120" diag 1.2 gain scope screen - will this be ok brightness wise? The viewing area will be 2.806m x 1.184 m giving an area of 3.32 square metres (or 25.84 sq feet). This will be similar in area to a 110" diag 16:9 screen (2.440m x 1.372m or 3.35m2).

When viewing 2.35:1 movies I will achieve about 30% extra brightness when compared to the 110" 16:9 screen.

My estimate of the ftl is about 23 FtL: 520 lumens as per Cine4home (mid-zoom, D65 and normal lamp); 1.2 gain and viewing area of 25.84 sq feet; 5% light loss from anamorphic lens; and new lamp.

All the talk about pushing the envelope got me worried - just wanted to check

Duyk, you will be fine with a 120" scope screen at 1.2 gain, perfect in fact for me too.

I found my BenQ8720 on a similar area 108" 16:9 1.0 gain screen was fine, and I believe the HD1 will be brighter

Good choice IMO

[Guest eandoz]

My room is totally light controlled,very very dark grey painted walls ceilings etc,even the windows will be painted black so once you close the door you cant even see your hand in front of your face.Initially I was going to colour co-ordinate the room to give it a more pleasing look aesthetically.This was until I decided that to get the maximum potential of the jvc's contrast I would need a batcave.The way I see it,the room is only for movies so bugger what it looks like.I want the best movie experience possible.

I am still undecided on the setup so any recommendations are welcome.

This is what I'm considering;

1)JVC pj

2)Aussiemorfic or prismasonic lens

3)Toshiba hd-e1

4)vp50 for scaling(depending if I can find one cheap)

5)120" wide scope screen,considering oz theatre screen.

Suggestions?

Dave

[norpus]

My room is totally light controlled,very very dark grey painted walls ceilings etc,even the windows will be painted black so once you close the door you cant even see your hand in front of your face.Initially I was going to colour co-ordinate the room to give it a more pleasing look aesthetically.This was until I decided that to get the maximum potential of the jvc's contrast I would need a batcave.The way I see it,the room is only for movies so bugger what it looks like.I want the best movie experience possible.

I am still undecided on the setup so any recommendations are welcome.

This is what I'm considering;

1)JVC pj

2)Aussiemorfic or prismasonic lens

3)Toshiba hd-e1

4)vp50 for scaling(depending if I can find one cheap)

5)120" wide scope screen,considering oz theatre screen.

Suggestions?

Dave

I suggest that sounds bloody good to me

[Guest eandoz]

I suggest that sounds bloody good to me

[Gino]

Gino,

haven't bought the screen yet,as you can see I'm trying to work this one out.What's rock bottom on your screen?and what were the dimensions again?

Dave

Ummm... $2K is rock bottom! This is a mint condition Stewart Luxus Deluxe Screenwall, with the velour flocking, doesn't get much better than this for fixed screens. RRP for this is ~AU$6700 at the time of purchase.

Dimensions are 63" x 121". 1.92 AR, 1.0 snomatte. I realise this is an odd aspect ratio, and it is only unity gain. But I believe unity gain will give you most accurate representation with no chance of colour shifting or hot spotting. As for the AR, you could try a constant width setup, or mask it to make it cinemascope... it's still a bargain either way.

[norpus]

Ummm... $2K is rock bottom! This is a mint condition Stewart Luxus Deluxe Screenwall, with the velour flocking, doesn't get much better than this for fixed screens. RRP for this is ~AU$6700 at the time of purchase.

Dimensions are 63" x 121". 1.92 AR, 1.0 snomatte. I realise this is an odd aspect ratio, and it is only unity gain. But I believe unity gain will give you most accurate representation with no chance of colour shifting or hot spotting. As for the AR, you could try a constant width setup, or mask it to make it cinemascope... it's still a bargain either way.

Yep, Stewart make rolls royce of screens. $2K is a bargain

[DuyKha]

Ummm... $2K is rock bottom! This is a mint condition Stewart Luxus Deluxe Screenwall, with the velour flocking, doesn't get much better than this for fixed screens. RRP for this is ~AU$6700 at the time of purchase.

Dimensions are 63" x 121". 1.92 AR, 1.0 snomatte. I realise this is an odd aspect ratio, and it is only unity gain. But I believe unity gain will give you most accurate representation with no chance of colour shifting or hot spotting. As for the AR, you could try a constant width setup, or mask it to make it cinemascope... it's still a bargain either way.

If this was 2.37:1 I would buy it at $2500 - or double what I'm spending on a screen!

[Guest eandoz]

Yeah,I hear ya.

The AR and the gain I keep forgetting to take into consideration.

Dammit, I really was considering this screen but the whole argument for going scope was the elimination of masking alltogether,with the added bonus of a larger pic.Unfortunately there is no way the JVC can light up a 120" wide unity gain screen with acceptable ftl,as with the 1.92 AR,it would have to be a constant width setup.UGGHHH

Sorry Gino, looks like I'll have to pass on the screen.

Anyone tried oztheatre screens?Reviews,comparisons?

Dave

[norpus]

.

Anyone tried oztheatre screens?Reviews,comparisons?

Dave

JohnA has a 100" scope fixed screen with Evo fabric - he likes it and so do I

[DuyKha]

JohnA has a 100" scope fixed screen with Evo fabric - he likes it and so do I

My 120" OZTS scope screen will be delivered next week. It's a shame that they will no longer sell factory direct. Hopefully the price impact will not be too excessive.

I was very impressed with the Evo3D sample and decided on the screen.

[JoshH]

Yep, Stewart make rolls royce of screens. $2K is a bargain

2K is less than cost price.

[CRM-114]

Anyone tried oztheatre screens?Reviews,comparisons?

Dave

Hi Dave,

I can recommend OZ theatre screens unconditionally.

I ordered a 'scope majestic 3 months ago and did not get to assembling it until last W/E. Trouble was the screen fabric got marked being rolled up for so long.

One e-mail to Richard at OZT and he had another roll of fabric in the mail...

Now that is service!

The screen itself works a treat, acurate colour, uniform brightness, and the assembly is straightforward, thanks to the clear instructions.

Honestly, you'l like it

Philippe

PS I have no connection to OZT

[benthx]

Hi Dave,

I can recommend OZ theatre screens unconditionally.

I ordered a 'scope majestic 3 months ago and did not get to assembling it until last W/E. Trouble was the screen fabric got marked being rolled up for so long.

One e-mail to Richard at OZT and he had another roll of fabric in the mail...

Now that is service!

The screen itself works a treat, acurate colour, uniform brightness, and the assembly is straightforward, thanks to the clear instructions.

Honestly, you'l like it

Philippe

PS I have no connection to OZT

Hey Philipe

What lens are you going to use? Did you get in on the HD1?

Ben

[CRM-114]

Hi Ben,

sure did, # 4 I'm reliably informed by Jenny

I ordered the OZT screen and Aussimorphic as a package.

I missed the courrier on Friday for the new fabric, and with the HD1 ETA being next week, Easter looks like a MONSTER W/E for me. Better hurry finishing the 'home made' mount....

I also ordered a VP30 for the vertical stretch, and to simplify the cable run to the projector. (HDMI).

Cheers

Philippe

[norpus]

Hi Ben,

sure did, # 4 I'm reliably informed by Jenny

I ordered the OZT screen and Aussimorphic as a package.

I missed the courrier on Friday for the new fabric, and with the HD1 ETA being next week, Easter looks like a MONSTER W/E for me. Better hurry finishing the 'home made' mount....

I also ordered a VP30 for the vertical stretch, and to simplify the cable run to the projector. (HDMI).

Cheers

Philippe

mortierp, I assume you realised vp30 won't do HD stretch? hope so

[benthx]

mortierp, I assume you realised vp30 won't do HD stretch? hope so

Well spotted Norpus. S##T I hope mortierp didnt by the VP 30 to stretch HD signals.

You should have consulted the collective on the forum. We are here to help everyone

Matt Goldsmith is a wizz on scalers and also another forum member Gino. Not to forget Foggy as well.

dvdstation.com.au

Ben

[Gino]

2K is less than cost price.

You got that right!

I might just hang on to it and see how it performs with the HD1 anyway.

[Gino]

Well spotted Norpus. S##T I hope mortierp didnt by the VP 30 to stretch HD signals.

You should have consulted the collective on the forum. We are here to help everyone

Matt Goldsmith is a wizz on scalers and also another forum member Gino. Not to forget Foggy as well.

This reminded me, got to get back to your PM Norpus