Optoma TW675UTi-3D Projector - See the result :)
I'm thinking of buying a Optoma TW675UTi-3D Projector, second hand price arround 400€.. It will only be used for 3D gaming, and my goal is more immersion and less crosstalk than on my Asus VG248 ! My only physical option for a projector is a wall mounted ultra short throw projector with a max screen size of app. 80". Viewing distance will be max 3 feet in a small room without sunlight.. Will that be ok with 720P x4 DSR ? And can I run it in a satisfactory speed with my 980 TI ? ( I guess you turn off AA in DSR ?) There's only HDMI v1.3 and VGA... can I use this for 3D Vision or only 3DTV ? Please guys, tell me every thing I need to know, all inputs will be valuable to me, I know absolutely nothing about projectors :) http://www.projectorcentral.com/Optoma-TW675UTi-3D.htm (this allso contains a link to a PDF data sheet)
I'm thinking of buying a Optoma TW675UTi-3D Projector, second hand price arround 400€..
It will only be used for 3D gaming, and my goal is more immersion and less crosstalk than on my Asus VG248 !

My only physical option for a projector is a wall mounted ultra short throw projector with a max screen size of app. 80". Viewing distance will be max 3 feet in a small room without sunlight..
Will that be ok with 720P x4 DSR ? And can I run it in a satisfactory speed with my 980 TI ?
( I guess you turn off AA in DSR ?)

There's only HDMI v1.3 and VGA... can I use this for 3D Vision or only 3DTV ?

Please guys, tell me every thing I need to know, all inputs will be valuable to me, I know absolutely nothing about projectors :)

http://www.projectorcentral.com/Optoma-TW675UTi-3D.htm
(this allso contains a link to a PDF data sheet)

Win7 64bit Pro
CPU: 4790K 4.8 GHZ
GPU: Aurus 1080 TI 2.08 GHZ - 100% Watercooled !
Monitor: Asus PG278QR
And lots of ram and HD's ;)

#1
Posted 04/27/2016 08:05 AM   
The main problems with Ultra Short Throw projectors is that they must be perfectly aligned or you will get distortion in the corner that is furthest away and closest. Not very noticeable in games, but text is a problem when web surfing. The same goes for regular projectors but UST PJs are more susceptable to minor misalignments. The other thing is due to the extreme angle of the light/image being projected, the wall needs to be flat and smooth. Small textures or anything sticking out will cast a shadow. If the wall is warped/bowed, the image is distorted. 3DTV Play only works with HDMI 1.4 compliant projectors. HDMI 1.3 projectors require a Frame Sequential format, 3DTV Play only outputs Frame Packed and Checkerboard. The TW675UTi is not officially certified, you would need an unofficial work around. Also business projectors are ok for gaming but the colors tend to not be as good as Home Theater projectors. Edit: I looked to see if there was a thread for the TW675UTi over at Audio Visual Science forums (AVS) but there isn't. You could read the thread for the LG PF1000U Ultra Short Throw to see some of these issues discussed. http://www.avsforum.com/forum/68-digital-projectors-under-3-000-usd-msrp/2133386-ifa-2015-lg-pf1000u-ultra-short-throw-projector-13.html I forgot to mention that with UST Projectors, you "can not" use high gain screens.
The main problems with Ultra Short Throw projectors is that they must be perfectly aligned or you will get distortion in the corner that is furthest away and closest. Not very noticeable in games, but text is a problem when web surfing. The same goes for regular projectors but UST PJs are more susceptable to minor misalignments.

The other thing is due to the extreme angle of the light/image being projected, the wall needs to be flat and smooth. Small textures or anything sticking out will cast a shadow. If the wall is warped/bowed, the image is distorted.

3DTV Play only works with HDMI 1.4 compliant projectors. HDMI 1.3 projectors require a Frame Sequential format, 3DTV Play only outputs Frame Packed and Checkerboard.

The TW675UTi is not officially certified, you would need an unofficial work around.

Also business projectors are ok for gaming but the colors tend to not be as good as Home Theater projectors.


Edit: I looked to see if there was a thread for the TW675UTi over at Audio Visual Science forums (AVS) but there isn't. You could read the thread for the LG PF1000U Ultra Short Throw to see some of these issues discussed.

http://www.avsforum.com/forum/68-digital-projectors-under-3-000-usd-msrp/2133386-ifa-2015-lg-pf1000u-ultra-short-throw-projector-13.html

I forgot to mention that with UST Projectors, you "can not" use high gain screens.

#2
Posted 04/27/2016 11:25 AM   
[quote="D-Man11"] The TW675UTi is not officially certified, you would need an unofficial work around.[/quote] You mean an Edid override ? Would YOU be worried about not getting it to work at all ? About the wall I was thinking of some sort of plate with a smooth surface, MDF perhaps with the right coating/paint. The alignment will be tricky as you say, but perhaps I could make a solid wall bracket easely adjusted in all directions.. Thanks alot for your input D-Man11, as allways they are highly appreciated !
D-Man11 said:
The TW675UTi is not officially certified, you would need an unofficial work around.


You mean an Edid override ? Would YOU be worried about not getting it to work at all ?

About the wall I was thinking of some sort of plate with a smooth surface, MDF perhaps with the right coating/paint.
The alignment will be tricky as you say, but perhaps I could make a solid wall bracket easely adjusted in all directions..


Thanks alot for your input D-Man11, as allways they are highly appreciated !

Win7 64bit Pro
CPU: 4790K 4.8 GHZ
GPU: Aurus 1080 TI 2.08 GHZ - 100% Watercooled !
Monitor: Asus PG278QR
And lots of ram and HD's ;)

#3
Posted 04/27/2016 01:11 PM   
If you're going to go that route you'd be better off with screengoo. It'sa paint you put on your wall so you don't need a screen. I used a method of combining aeroplane paint and normal household paint. People on AVR forums had a guide for it. They A/B'd it with stewart screens and got the formula to the point it was almost identical. Depending on which country you are from depends on the type of paint you can buy. I'm really happy with the results though! I'll take a picture of my setup so you can see. The best bit is you can change your screen size easily depending on what you are watching. Some FPS competitive games are harder to play on a big screen as you have to move your head rather than your eyes! I also painted the walls and ceiling in anthracite to give a higher perceived contrast ratio. The difference it made was far greater than my expectations. I'll try and get some pics up so you can see.
If you're going to go that route you'd be better off with screengoo.
It'sa paint you put on your wall so you don't need a screen.

I used a method of combining aeroplane paint and normal household paint.
People on AVR forums had a guide for it. They A/B'd it with stewart screens and got the formula to the point it was almost identical.
Depending on which country you are from depends on the type of paint you can buy.
I'm really happy with the results though!

I'll take a picture of my setup so you can see.

The best bit is you can change your screen size easily depending on what you are watching.
Some FPS competitive games are harder to play on a big screen as you have to move your head rather than your eyes!

I also painted the walls and ceiling in anthracite to give a higher perceived contrast ratio.
The difference it made was far greater than my expectations.
I'll try and get some pics up so you can see.

#4
Posted 04/27/2016 06:25 PM   
[quote="GibsonRed"]If you're going to go that route you'd be better off with screengoo. It'sa paint you put on your wall so you don't need a screen. I used a method of combining aeroplane paint and normal household paint. People on AVR forums had a guide for it. They A/B'd it with stewart screens and got the formula to the point it was almost identical. Depending on which country you are from depends on the type of paint you can buy. I'm really happy with the results though! I'll take a picture of my setup so you can see. The best bit is you can change your screen size easily depending on what you are watching. Some FPS competitive games are harder to play on a big screen as you have to move your head rather than your eyes! I also painted the walls and ceiling in anthracite to give a higher perceived contrast ratio. The difference it made was far greater than my expectations. I'll try and get some pics up so you can see.[/quote] I have been reading about people using different kinds of grey nuances to enhance the black level in the picture.. I'm playing in a rather dark room so there's not a big need for reflective paint. Please do post some pictures :) EDIT: Allmost forgot it... Just bought one for 175,-€ on an online auktion
GibsonRed said:If you're going to go that route you'd be better off with screengoo.
It'sa paint you put on your wall so you don't need a screen.

I used a method of combining aeroplane paint and normal household paint.
People on AVR forums had a guide for it. They A/B'd it with stewart screens and got the formula to the point it was almost identical.
Depending on which country you are from depends on the type of paint you can buy.
I'm really happy with the results though!

I'll take a picture of my setup so you can see.

The best bit is you can change your screen size easily depending on what you are watching.
Some FPS competitive games are harder to play on a big screen as you have to move your head rather than your eyes!

I also painted the walls and ceiling in anthracite to give a higher perceived contrast ratio.
The difference it made was far greater than my expectations.
I'll try and get some pics up so you can see.


I have been reading about people using different kinds of grey nuances to enhance the black level in the picture..
I'm playing in a rather dark room so there's not a big need for reflective paint.

Please do post some pictures :)

EDIT: Allmost forgot it...

Just bought one for 175,-€ on an online auktion

Win7 64bit Pro
CPU: 4790K 4.8 GHZ
GPU: Aurus 1080 TI 2.08 GHZ - 100% Watercooled !
Monitor: Asus PG278QR
And lots of ram and HD's ;)

#5
Posted 04/27/2016 08:00 PM   
You should be able to access the service menu to see how many hours are currently on the projector. Hopefully not that many. One of these methods should work. http://factory-reset.com/wiki/Optoma_Service_Menu
You should be able to access the service menu to see how many hours are currently on the projector.

Hopefully not that many.

One of these methods should work.


http://factory-reset.com/wiki/Optoma_Service_Menu

#6
Posted 04/27/2016 08:20 PM   
It's higly controvelsial subject. Should i go with screen or paint? I have used paints forever, as im a painter. But i have Also dreamed about real screen. And tested lots of materials and paints. Smoothest surface you get, especially in home setup with Tikkurila otex, (solventbased) waterbased dry much faster and so don't have time to Settle and smoothout if you are painting by Hand. Otex is full mat. Picking color. Use ncs so you know whats in the mix. Or ask the rep when bying something white with no pastes other than white or black. And if you want higher gain pic out solventbased surface with Little more gloss. If i my self would buy a screen i would buy ambient rejecting passive 3D silver screen. Silver screens especially are hard to make by your self (i mean good) and are super sensitive to smudges, wrrinkles ect. But if you need screen surface for 2D /active 3D stay awater from screens with silver. They always produce grainines, even the best ones a Little. Don't buy those super expensive paints with out trying out normal paint products. I once bought a Littre of proper 2D screen paint. Cost as Hell and was not aNything special Also i made silver screen paint with bying a can of aluminium flakes and laquer for base. About the same result in PQ.
It's higly controvelsial subject. Should i go with screen or paint?
I have used paints forever, as im a painter. But i have Also dreamed about real screen. And tested lots of materials and paints.
Smoothest surface you get, especially in home setup with Tikkurila otex, (solventbased) waterbased dry much faster and so don't have time to Settle and smoothout if you are painting by Hand. Otex is full mat. Picking color. Use ncs so you know whats in the mix.
Or ask the rep when bying something white with no pastes other than white or black. And if you want higher gain pic out solventbased surface with Little more gloss.
If i my self would buy a screen i would buy ambient rejecting passive 3D silver screen. Silver screens especially are hard to make by your self (i mean good) and are super sensitive to smudges, wrrinkles ect.
But if you need screen surface for 2D /active 3D stay awater from screens with silver. They always produce grainines, even the best ones a Little. Don't buy those super expensive paints with out trying out normal paint products.
I once bought a Littre of proper 2D screen paint. Cost as Hell and was not aNything special Also i made silver screen paint with bying a can of aluminium flakes and laquer for base. About the same result in PQ.

CoreX9 Custom watercooling (valkswagen polo radiator)
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Video: Passive 3D fullhd 3D@60hz/channel Denon x1200w /Hc5 x 2 Geobox501->eeColorBoxes->polarizers/omega filttersCustom made silverscreen
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#7
Posted 04/28/2016 05:51 AM   
Many people are using some kind of silver screen/paint if the purpose is only 3D. I actually has a couple of spray cans with paint normally used for rims, its not super shiny or anything just sort of silver/grey matte.. Is it to shiny anyway - Metaloholic ?? Has anybody tried something like that ? In my garage I allso found a canvas frame for painting, I do some painting when I'm not playing games :) I'ts 600"x400" so proportions and size would fit nice, but what about the surface, is it to rough ??
Many people are using some kind of silver screen/paint if the purpose is only 3D.

I actually has a couple of spray cans with paint normally used for rims, its not super shiny or anything just sort of silver/grey matte..
Is it to shiny anyway - Metaloholic ??

Has anybody tried something like that ?

In my garage I allso found a canvas frame for painting, I do some painting when I'm not playing games :)

I'ts 600"x400" so proportions and size would fit nice, but what about the surface, is it to rough ??

Win7 64bit Pro
CPU: 4790K 4.8 GHZ
GPU: Aurus 1080 TI 2.08 GHZ - 100% Watercooled !
Monitor: Asus PG278QR
And lots of ram and HD's ;)

#8
Posted 04/28/2016 07:58 AM   
Silver screens are for Dual Passive projection using polarization filters, that's so that the light bounces off and keeps it's rotation. I've no idea why Metaloholic would even want one since the Omega Filters are Color Bandpass Filtering and would not benefit from a Silver Screen. Blacksmith56, you can get a grasp on Passive Polarizition by checking out these links. https://en.wikipedia.org/wiki/Polarized_3D_system http://www.projectorreviews.com/home-theater-and-projectors-the-technical-side/passive-3d-projection-part-1/ http://www.projectorreviews.com/home-theater-and-projectors-the-technical-side/3d-crosstalkghosting-part-2-and-silver-screens/ http://www.avsforum.com/forum/191-3d-displays/1299974-my-passive-polarised-dual-projector-setup.html As a side note, ST and UST projectors are terrible for Color Bandpass Filtering and AFAIK not good for Passive Polarized Projection . But as Metalohilc said, stay away from Silver Screens for Single Active Projection because of the grains.
Silver screens are for Dual Passive projection using polarization filters, that's so that the light bounces off and keeps it's rotation.

I've no idea why Metaloholic would even want one since the Omega Filters are Color Bandpass Filtering and would not benefit from a Silver Screen.

Blacksmith56, you can get a grasp on Passive Polarizition by checking out these links.


https://en.wikipedia.org/wiki/Polarized_3D_system

http://www.projectorreviews.com/home-theater-and-projectors-the-technical-side/passive-3d-projection-part-1/

http://www.projectorreviews.com/home-theater-and-projectors-the-technical-side/3d-crosstalkghosting-part-2-and-silver-screens/

http://www.avsforum.com/forum/191-3d-displays/1299974-my-passive-polarised-dual-projector-setup.html

As a side note, ST and UST projectors are terrible for Color Bandpass Filtering and AFAIK not good for Passive Polarized Projection .

But as Metalohilc said, stay away from Silver Screens for Single Active Projection because of the grains.

#9
Posted 04/28/2016 10:21 AM   
Blacksmith56, this is the guide I followed when i made my man cave. https://www.avforums.com/threads/diy-projector-screen-paint-finally-found-for-the-uk-black-widow.772879/ The screen is slightly grey and uses some extremely reflective aeroplane paint mixed with standard house hold paint. It works really well. Painting the walls and ceiling a dark colour does help though. I'll edit this post with a picture of my room. Edit: [IMG]http://i65.tinypic.com/4jonsh.jpg[/IMG]
Blacksmith56, this is the guide I followed when i made my man cave.

https://www.avforums.com/threads/diy-projector-screen-paint-finally-found-for-the-uk-black-widow.772879/

The screen is slightly grey and uses some extremely reflective aeroplane paint mixed with standard house hold paint.
It works really well. Painting the walls and ceiling a dark colour does help though.
I'll edit this post with a picture of my room.

Edit: Image

#10
Posted 04/28/2016 11:41 AM   
Thank you guys, for enlighten me on the subject ! GibsonRed: Your cave looks cozy :) I thought that screens wheren't exactly rocket sience, but I was wrong (again:) I've also learned that there's no straight answers, I'll have to experiment.. I'll might start out with the canvas frame as it is, though I'm a bit worried about the shadow issue from USTP on this particular surface, as you mentioned D-Man11.. Edit: I also consider bying an eternit plate (fiber cement) they are completely plane and nicely sanded with a matte surface, and allso very hard and stiff. They come in the following colors, natural (light grey)or pearl white, and could be painted later on if nescesary..
Thank you guys, for enlighten me on the subject !
GibsonRed: Your cave looks cozy :)

I thought that screens wheren't exactly rocket sience, but I was wrong (again:)
I've also learned that there's no straight answers, I'll have to experiment..

I'll might start out with the canvas frame as it is, though I'm a bit worried about the shadow issue from USTP on this particular surface, as you mentioned D-Man11..

Edit: I also consider bying an eternit plate (fiber cement) they are completely plane and nicely sanded with a matte surface, and allso very hard and stiff.
They come in the following colors, natural (light grey)or pearl white, and could be painted later on if nescesary..

Win7 64bit Pro
CPU: 4790K 4.8 GHZ
GPU: Aurus 1080 TI 2.08 GHZ - 100% Watercooled !
Monitor: Asus PG278QR
And lots of ram and HD's ;)

#11
Posted 04/28/2016 01:37 PM   
Hi guys - just want's to share my PJ experiences with you. After some struggle with screens and adjustments, I think the result is pretty good :) I ended up with a Lissau 70" canvas wich works quite allright ! As you can see I don't have a lot of space, so I'm sitting about 4 feet from the screen, and it fills my view entirely. 3D Vision works fine with the Acer 5360 inf. and the PJ has plenty of light even in the standard mode. In the beginning I adjusted the picture in the PJ's menu, with the result that more contrast than around 30%, resulted in a bleeding white EG looking at the sun in Witcher 3, made the sun looks like a white splash in screendepht ! I solved that by using Nvidia's CP and adjusted the contrast, there I can go as high as desired without the bleeding issue.. I haven't seen any screendoor effects or crosstalk at all, and can highly recomend others with lack of space to consider this PJ. I will say a 720P PJ with this short distance is not very good to "small detail" games like RTS, but excelent to FPS where the hands / weapon has a very realistic size, it's incredably imersive :) Edit: I bought it here and they still have a few left, the price usually ends around 150€ [url]http://www.lauritz.com/en/auktioner/tv-fladskaerme-projektorer/c248/?FLId=1&ISz=0&PSz=30&PSzG=30&LLan=False&OD=False&sl=1[/url] https://forums.geforce.com/cmd/default/download-comment-attachment/69537/ [img]https://forums.geforce.com/cmd/default/download-comment-attachment/69537/[/img]
Hi guys - just want's to share my PJ experiences with you.

After some struggle with screens and adjustments, I think the result is pretty good :)

I ended up with a Lissau 70" canvas wich works quite allright !
As you can see I don't have a lot of space, so I'm sitting about 4 feet from the screen, and it fills my view entirely.

3D Vision works fine with the Acer 5360 inf. and the PJ has plenty of light even in the standard mode.

In the beginning I adjusted the picture in the PJ's menu, with the result that more contrast than around 30%, resulted in a bleeding white EG looking at the sun in Witcher 3, made the sun looks like a white splash in screendepht !
I solved that by using Nvidia's CP and adjusted the contrast, there I can go as high as desired without the bleeding issue..

I haven't seen any screendoor effects or crosstalk at all, and can highly recomend others with lack of space to consider this PJ.

I will say a 720P PJ with this short distance is not very good to "small detail" games like RTS, but excelent to FPS where the hands / weapon has a very realistic size, it's incredably imersive :)

Edit: I bought it here and they still have a few left, the price usually ends around 150€
http://www.lauritz.com/en/auktioner/tv-fladskaerme-projektorer/c248/?FLId=1&ISz=0&PSz=30&PSzG=30&LLan=False&OD=False&sl=1

https://forums.geforce.com/cmd/default/download-comment-attachment/69537/

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Win7 64bit Pro
CPU: 4790K 4.8 GHZ
GPU: Aurus 1080 TI 2.08 GHZ - 100% Watercooled !
Monitor: Asus PG278QR
And lots of ram and HD's ;)

#12
Posted 06/13/2016 07:51 PM   
Looks like that Ultra Short Throw works well for you, the screen just barefly fits in there at the right height :) Is it noisey? Most projectors are, but this is right above your head.
Looks like that Ultra Short Throw works well for you, the screen just barefly fits in there at the right height :)

Is it noisey? Most projectors are, but this is right above your head.

#13
Posted 06/14/2016 07:41 AM   
[quote="D-Man11"]Looks like that Ultra Short Throw works well for you, the screen just barefly fits in there at the right height :) Is it noisey? Most projectors are, but this is right above your head.[/quote] Yeah - it couldn't have been 1" bigger :) Actually both the Pc and my wife makes more noise, only in bright mode the noise is noticeable, furthermore I allways plays with my headset on.. But with it's 3200 lumens and the screen in a dark corner, it's bright enough in standard mode, even for 3D..
D-Man11 said:Looks like that Ultra Short Throw works well for you, the screen just barefly fits in there at the right height :)

Is it noisey? Most projectors are, but this is right above your head.


Yeah - it couldn't have been 1" bigger :)

Actually both the Pc and my wife makes more noise, only in bright mode the noise is noticeable, furthermore I allways plays with my headset on..
But with it's 3200 lumens and the screen in a dark corner, it's bright enough in standard mode, even for 3D..

Win7 64bit Pro
CPU: 4790K 4.8 GHZ
GPU: Aurus 1080 TI 2.08 GHZ - 100% Watercooled !
Monitor: Asus PG278QR
And lots of ram and HD's ;)

#14
Posted 06/14/2016 03:13 PM   
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