DIY Video Projector Part II - Page 61

Mitch · 9th August 2002, 06:45 AM

Hi guys,
How bad would a 100:1 contrast ration be? it sounds pretty bad considering Sony has a screen that has a 3000:1 ratio...

Mario007 · 9th August 2002, 06:54 AM

100:1 ratio is not bad. The highest sharp projection panel is 150:1 (QA-2500). Sony may have a screen with 3000:1 ratio but that could be counting each pixel and multplying that by 3. 3000:1 is a bit excessive I think. Although more is always better I sure don't want to pay the price for that sony.

thelaw · 10th August 2002, 09:45 PM

Hello ppl, just wondering if any of you could help me out with something.

I have an NView Spectra Pro. When using it with my ohp, there is a small (but quite irritating) white spot in the middle of the screen (about 2inches wide on a 2metre screen diag)

I think that this is an image of the filament projected, however it must have something to do with the polarizers on the lcd. When i turn the panel over, the spot disapears. I have a rear-projection setting on the panel so inversing the picture is not a problem.

My question is, will operating the panel like this damage it? Is there some kind of heat blocking substance at the back?

One other thing, took the panel apart today out of interest, seems the lcd module inside is manufactured by sharp

i do have a sharp panel after all

)

If anyone has a Sharp QA-2500 for sale, please email me

prjctr_builder · 10th August 2002, 10:15 PM

If anyone interseted, i accept offers for my QA-2500. good condition, no scratches, and all the specs that it came with. Has a hard case, Vga cable, remote.

thanks

prjctr_builder · 10th August 2002, 10:16 PM

ikutuyev@sbcglobal.net

woneill · 10th August 2002, 10:17 PM

Hi Aleksey,

What went wrong? You seemed so happy with it.

Bill.

thelaw · 10th August 2002, 10:42 PM

Ditto. How come u dont want it anymore?

woneill · 10th August 2002, 10:48 PM

BTW, there is this one if you are quick...

http://cgi.ebay.com/ws/eBayISAPI.dll...372093563&rd=1

prjctr_builder · 11th August 2002, 03:44 AM

http://cgi.ebay.com/ws/eBayISAPI.dll...372019600&rd=1

please consider this....

prjctr_builder · 11th August 2002, 03:46 AM

1. i love this panel, but i have nowhere to watch movies with it, the rooms are kinda small, i used in garage, but it is getting cold in there, and iwanna have a cozy place.

2. no time = school, work

3. no money = car

thanks

P.S. hard to be 16

10th August 2002, 09:45 PM	#603
thelaw diyAudio Member Join Date: Apr 2002 Location: London	Hello ppl, just wondering if any of you could help me out with something. I have an NView Spectra Pro. When using it with my ohp, there is a small (but quite irritating) white spot in the middle of the screen (about 2inches wide on a 2metre screen diag) I think that this is an image of the filament projected, however it must have something to do with the polarizers on the lcd. When i turn the panel over, the spot disapears. I have a rear-projection setting on the panel so inversing the picture is not a problem. My question is, will operating the panel like this damage it? Is there some kind of heat blocking substance at the back? One other thing, took the panel apart today out of interest, seems the lcd module inside is manufactured by sharp i do have a sharp panel after all ) If anyone has a Sharp QA-2500 for sale, please email me __________________ Jon

10th August 2002, 10:15 PM	#604
prjctr_builder diyAudio Member Join Date: May 2002 Location: San Francisco	I HAVE QA-2500 FOR SALE!!! If anyone interseted, i accept offers for my QA-2500. good condition, no scratches, and all the specs that it came with. Has a hard case, Vga cable, remote. thanks

10th August 2002, 10:16 PM	#605
prjctr_builder diyAudio Member Join Date: May 2002 Location: San Francisco	My email.... ikutuyev@sbcglobal.net

10th August 2002, 10:42 PM	#607
thelaw diyAudio Member Join Date: Apr 2002 Location: London	Ditto. How come u dont want it anymore? __________________ Jon

11th August 2002, 03:44 AM	#609
prjctr_builder diyAudio Member Join Date: May 2002 Location: San Francisco	here you go.... http://cgi.ebay.com/ws/eBayISAPI.dll...372019600&rd=1 please consider this....


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

9th August 2002, 06:45 AM	#601
Mitch diyAudio Member Join Date: Jul 2002 Location: Indiana, USA	Hi guys, How bad would a 100:1 contrast ration be? it sounds pretty bad considering Sony has a screen that has a 3000:1 ratio...

9th August 2002, 06:54 AM	#602
Mario007 diyAudio Member Join Date: Jul 2002 Location: Portland	100:1 ratio is not bad. The highest sharp projection panel is 150:1 (QA-2500). Sony may have a screen with 3000:1 ratio but that could be counting each pixel and multplying that by 3. 3000:1 is a bit excessive I think. Although more is always better I sure don't want to pay the price for that sony.

10th August 2002, 10:17 PM	#606
woneill diyAudio Member Join Date: Jun 2002 Location: Somewhere in Sunny NJ	Hi Aleksey, What went wrong? You seemed so happy with it. Bill.

10th August 2002, 10:48 PM	#608
woneill diyAudio Member Join Date: Jun 2002 Location: Somewhere in Sunny NJ	BTW, there is this one if you are quick... http://cgi.ebay.com/ws/eBayISAPI.dll...372093563&rd=1

11th August 2002, 03:46 AM	#610
prjctr_builder diyAudio Member Join Date: May 2002 Location: San Francisco	reasons... 1. i love this panel, but i have nowhere to watch movies with it, the rooms are kinda small, i used in garage, but it is getting cold in there, and iwanna have a cozy place. 2. no time = school, work 3. no money = car thanks P.S. hard to be 16

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