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bachiano
Joined: 13 Mar 2006
Posts: 130
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 Link Posted: Mon Feb 13, 2012 9:50 pm Post subject: recommendations for 87" width screen for G70 |
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Ideally a Manual pulldown 1.3 gain screen - not too expensive.
maybe tensioned?
Found this on cragslist but it is to big for my g70:
Stewart Luxus Deluxe Screenwall Studiotek 130
Model # SND123HST13WTEX
Aspect Ratio 16:9
Perforated
1.3 gain
Image size: 60" x 107", 123" Diagonal
Black frame
Any thoughts appreciated.
Thanks
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draganm
Joined: 08 Mar 2006
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Location: Colorado
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HaydnG90
Joined: 22 May 2006
Posts: 810
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| Link Posted: Mon Feb 13, 2012 10:13 pm Post subject: |
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If you can minimize the angle of the viewer to the pj then Dalite High Power screen material makes a great manual pull-down option due to its thickness and consequent resistance to wrinkles.
Last edited by HaydnG90 on Tue Feb 14, 2012 12:14 am; edited 1 time in total
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AFryia
Joined: 09 Mar 2006
Posts: 740
Location: S.E. Michigan
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| Link Posted: Mon Feb 13, 2012 11:58 pm Post subject: |
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92"x52" (106 dia) 1.3 matte white works well in a light controlled room.
I would caution against using it anywhere else.
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ecrabb
Joined: 13 Mar 2006
Posts: 12498
Location: Iowa
TV/Projector: JVC RS45
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| Link Posted: Tue Feb 14, 2012 12:58 am Post subject: |
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I'm thrilled with my 96x54 Wilsonart DW (with full light control), which is around 1.3 gain. I've never felt my image was dark or dingy. Yes, I'm pushing contrast a little harder than I would be at 84x48, but I don't care. I want a BIG screen... Not a screen that's a tiny bit bigger than the RPTV's in the electronics stores.
SC
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ecrabb
Joined: 13 Mar 2006
Posts: 12498
Location: Iowa
TV/Projector: JVC RS45
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| Link Posted: Tue Feb 14, 2012 1:11 am Post subject: |
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I just reread bachiano's post, and it looks like he's looking for a recommendation for a manual pull-down screen about 87" wide. I got thrown off by the Stewart thing....
Yeah, so 1.3-gain matte surface will work great in the 87" wide size, and will have plenty of punch with the G70.
Tab-tensioning isn't common on manual pull-down screens. I think Draper makes a couple of crank-operated screens, or else you have to go electric.
Maybe try a want-to-buy on Craigslist since you're in a large metro. There's bound to be some sitting around with all the empty commercial real estate right now. Might be able to get a deal on an electric one, even.
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bachiano
Joined: 13 Mar 2006
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| Link Posted: Tue Feb 14, 2012 3:24 am Post subject: |
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I think I'm pretty much stuck with 87" as my room length will not allow larger.
Any recommendations on price and brand.
I'd like to stay under $400. but preferably under $300.
I could do a Wilsonart but I'm sort of busy right now to put the time into making it work.
Thanks
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ecrabb
Joined: 13 Mar 2006
Posts: 12498
Location: Iowa
TV/Projector: JVC RS45
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| Link Posted: Tue Feb 14, 2012 4:18 am Post subject: |
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I hear ya on both the time and money thing.
Have you actually set your machine up and measured your image with max throw, or are you going by the throw calculator? If you're working on paper, you'll be able to get a little bigger image than you think - probably close to 10%.
Personally, if I were both time- and budget-constrained, I'd probably do something el-cheapo to get by while I hunted for or built exactly what I wanted.
You can find Da-Lite, VuTec, and Elite manual screens in the size you want for around $150 or so shipped. Just get one with a 1.1-1.3 gain material and you're good to go. An Elite 1.1 gain "MaxWhite", which you could get away with at 87"-wide, is just over $100.
Then, wait for some guy selling his $2500 Stewart for $300 or whatever and replace it, or build a Wilsonart.
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Phoenixed
Joined: 13 Oct 2011
Posts: 469
Location: The mitten
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| Link Posted: Tue Feb 14, 2012 4:40 am Post subject: |
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Jamestown is a nice screen. He made me for around 250 shipped for a 100". He uses the Seymour center stage xd material which prolly nets 1.1 gain.
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bachiano
Joined: 13 Mar 2006
Posts: 130
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| Link Posted: Tue Feb 14, 2012 3:10 pm Post subject: |
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| ecrabb wrote: | I hear ya on both the time and money thing.
Have you actually set your machine up and measured your image with max throw, or are you going by the throw calculator? If you're working on paper, you'll be able to get a little bigger image than you think - probably close to 10%.
Personally, if I were both time- and budget-constrained, I'd probably do something el-cheapo to get by while I hunted for or built exactly what I wanted.
You can find Da-Lite, VuTec, and Elite manual screens in the size you want for around $150 or so shipped. Just get one with a 1.1-1.3 gain material and you're good to go. An Elite 1.1 gain "MaxWhite", which you could get away with at 87"-wide, is just over $100.
Then, wait for some guy selling his $2500 Stewart for $300 or whatever and replace it, or build a Wilsonart.
SC |
Not using a calculator.
I have the PJ on a small table.
I currently have an 80" wide screen.
Back wall to screen is 135"
The back of the PJ is 6" from back wall.
The front of the PJ is 113" to the screen.
And I'm getting 5" of extra image on both sides of my 80"screen.
Do you think I can push the crosshatch pattern closer to the tube's edge?
I think I'm maxed out just enough?
I think (eye balling) the top edges of the hatch pattern are about 5mm from the edge of the tube.
I can't move the PJ back anymore.
But I can move it forward 4" to 5" max.
I think the manual suggest 12" minimum behind the PJ.
I could probably move the screen back 3" to 4" max.
But not sure if that would be enough to get me to 92" ???
Here are some pics using P2:
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draganm
Joined: 08 Mar 2006
Posts: 5080
Location: Colorado
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| Link Posted: Tue Feb 14, 2012 4:55 pm Post subject: |
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I think we should clear up that Matte White is not 1.3 gain. Matte White is exactly that, it's matte (flat with no gloss) and it's 1.0 gain. In the 1.3 range like Draper 1300 and Studiotek G3 there is some gloss or reflective element added
| bachiano wrote: | I think I'm pretty much stuck with 87" as my room length will not allow larger.
And I'm getting 5" of extra image on both sides of my 80"screen. |
if your stuck with 87" how is your PJ projecting 80" + 10" ?
| bachiano wrote: | Any recommendations on price and brand.
I'd like to stay under $400. but preferably under $300.
Thanks |
With a Floor mount go for the High power. Should be jumping off the wall even at 92" wide(assuming it fits your room)
http://www.ebay.com/itm/5769607161?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
+$15. for black housing. I just installed this at a friends and it's an excellent value for less than $300.
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ecrabb
Joined: 13 Mar 2006
Posts: 12498
Location: Iowa
TV/Projector: JVC RS45
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| Link Posted: Tue Feb 14, 2012 5:16 pm Post subject: |
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Yes, matte is technically 1.0. 1.1 is still quite matte, and 1.2-1.3 less so.
Looks like you're pretty maxed out. 5mm is about as close as you want to get. You'll already be sacrificing some corner focus, but I don't think you have a choice. Looks like you're on top of it, and from the sounds of it, I'd stay with the 87. Let's run the numbers though based on your setup... It's all linear if you assume the image size stays where it is on the tube face...
If your throw is 113 and you're getting a 90" image (80+5+5), then to get to 92", your throw would only have to go to 115.5, or 2.5 inches longer than it is now. If your screen go back 3-4", then you could probably move the screen 3", and the projector out from the wall .5". Or, you could stick with 87" and have a little more breathing room.
You should be fine with the projector where it is... Don't forget these machines were designed for industrial use in harsh conditions 24/7, so there's a lot of margin in the engineering specs. You should be fine at 6" behind the projector. A bit more would be nice, but since the front of the machine is open, and it's (presumably) a house you live in, it shouldn't be running in extreme heat, so you're fine.
I'm not a big high-power fan because I don't like the narrow viewing cone and the changing gain as you move in and out of the center. How about Video Spectra as a compromise between the two?
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HaydnG90
Joined: 22 May 2006
Posts: 810
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| Link Posted: Tue Feb 14, 2012 5:34 pm Post subject: |
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Be careful with high gain screens. I tried a Stewart Videomatte 2.0 gain screen once and the sparklies were unbearable. The G90 seemed to accentuate this problem. No such issues with the Dalite High Power material though.
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bachiano
Joined: 13 Mar 2006
Posts: 130
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| Link Posted: Tue Feb 14, 2012 6:35 pm Post subject: |
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| draganm wrote: |
| bachiano wrote: | I think I'm pretty much stuck with 87" as my room length will not allow larger.
And I'm getting 5" of extra image on both sides of my 80"screen. |
if your stuck with 87" how is your PJ projecting 80" + 10" ?
With a Floor mount go for the High power. Should be jumping off the wall even at 92" wide(assuming it fits your room)
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I can move the Pj forward and get to 80"
or I can stay where I am and be at 87"
or I have to move the Screen back to get to 92"
I would prefer 92" (bigger is better?) but as ecrabb pointed out.
87" will give me more breathing room.
I'm going to ceiling mount so I don't think high will work.
I would think a 1.3 gain at 87' should give great IQ?
Last edited by bachiano on Wed Feb 22, 2012 3:53 pm; edited 1 time in total
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bachiano
Joined: 13 Mar 2006
Posts: 130
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| Link Posted: Tue Feb 14, 2012 6:54 pm Post subject: |
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| ecrabb wrote: |
you could stick with 87" and have a little more breathing room.
You should be fine with the projector where it is... A bit more would be nice,
SC |
Exactly. I wish I could go to 92" but I think it wiser to go with is 87" for the extra leeway.
-------------
I could go even further back but then I'd have to move my hi fi stuff somewhere else.
I'm going to ponder that.
Is there a big different in pop between 87" and 92" ?
At 113" throw even with the lost 5" on each side of the screen,
the image has lots of punch at 50 and 70 Brightness and contrast on my 1.0 gain.
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draganm
Joined: 08 Mar 2006
Posts: 5080
Location: Colorado
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ecrabb
Joined: 13 Mar 2006
Posts: 12498
Location: Iowa
TV/Projector: JVC RS45
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| Link Posted: Tue Feb 14, 2012 8:43 pm Post subject: |
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| bachiano wrote: | | I would think a 1.3 gain at 87' should give great IQ? |
Yes, it should be great... And nice and sharp, too. Go for it.
I have a 96x54 Wilsonart, which is supposed to be very close to 1.3 (plus/minus), and I'm very happy with the brightness. You'll have 20% more brightness at similar gain, or close to the same as what I have even if you drop down to 1.1 gain or so. Some guys are brightness nuts. I'm very happy with my ~12fL (until the video amp crushes high-APL brightness, but then my pupils are constricting, so it's not that big of a deal.)
SC
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ecrabb
Joined: 13 Mar 2006
Posts: 12498
Location: Iowa
TV/Projector: JVC RS45
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| Link Posted: Tue Feb 14, 2012 8:49 pm Post subject: |
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| draganm wrote: | | I dunno that 87" wide is a standard size? Smoking deal on this 80" Clarion though, I use the m1300 material and it's very good measuring in at 1.25 actual gain. |
Yeah, here's a 47x87:
http://www.bhphotovideo.com/c/product/383437-REG/Draper_137012_137012_Salara_M_Manual_Front.html
That Clarion you linked to is a good deal, because the M1300 material is much more expensive than the matte white. At 1.25 gain and his smaller screen size, he'd have a nice, bright image.
SC
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AFryia
Joined: 09 Mar 2006
Posts: 740
Location: S.E. Michigan
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| Link Posted: Tue Feb 14, 2012 11:53 pm Post subject: |
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Real world throw distance for a G70. 92" wide at ~115" to the green lens rasters maxed.
http://www.curtpalme.com/forum/album_page.php?pic_id=1152
| bachiano wrote: |
I currently have an 80" wide screen.
Back wall to screen is 135"
The back of the PJ is 6" from back wall.
The front of the PJ is 113" to the screen.
And I'm getting 5" of extra image on both sides of my 80"screen.
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If you are indeed 113" screen to PJ that is virtually what I have so 92" wide is possible. Although your back wall dimenssion would need to be more than 135" I think.
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bachiano
Joined: 13 Mar 2006
Posts: 130
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| Link Posted: Wed Feb 15, 2012 3:10 am Post subject: |
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| AFryia wrote: | Real world throw distance for a G70. 92" wide at ~115" to the green lens rasters maxed.
http://www.curtpalme.com/forum/album_page.php?pic_id=1152
| bachiano wrote: |
I currently have an 80" wide screen.
Back wall to screen is 135"
The back of the PJ is 6" from back wall.
The front of the PJ is 113" to the screen.
And I'm getting 5" of extra image on both sides of my 80"screen.
|
If you are indeed 113" screen to PJ that is virtually what I have so 92" wide is possible. Although your back wall dimenssion would need to be more than 135" I think. |
Right now I'm 113" from the bottom lip of the green tube.
While I can't move the wall back, I'm pretty certain I can move the screen location away from the PJ by 2 or 3".
Will that be enough to get me to 92" ?
It has been said before that getting too close to the edge of the tubes causes geometry problems with the G70.
Afryia. Do you have geometry problems with your rasters maxed out?
Thanks for the drawing. It's very helpful to see it drawn out like that.
AFryia
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