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Rattanee
Joined: 18 Jan 2015 Posts: 193
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Link Posted: Fri Jan 29, 2016 6:50 pm Post subject: Looking for affordable blend processor |
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Hey guys,
I'm hoping someone can point me in the right direction. I am looking for a video processing unit that can do edge blending of HD content, analog input is a must, digital is not necessary. Is such a thing available without paying an arm and a leg for it ?
Thanks for your help in advance!
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kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17850 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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Rattanee
Joined: 18 Jan 2015 Posts: 193
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Link Posted: Fri Jan 29, 2016 7:53 pm Post subject: |
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Affordable as in around $500 or so tops... I'm just looking at my options at the moment... I may just do it with a PC, then again I may just end up doing a stack if I end up overshooting what I'm willing to spend on this hehh... I know that getting a good blend going takes a lot of time and effort, is it even possible to achieve an unnoticable blend of the two screens with any processor that is not in the 1k+ price range?
_________________ Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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kal Forum Administrator
Joined: 06 Mar 2006 Posts: 17850 Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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ecrabb Forum Moderator
Joined: 13 Mar 2006 Posts: 15909 Location: Utah
TV/Projector: JVC RS40, Epson 5010
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Link Posted: Fri Jan 29, 2016 9:25 pm Post subject: |
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The TV Ones are about as cheap as blending gets, though certainly wouldn't fit in the stated budget with new prices.
This pair went for awhile with no interest - maybe he still has them:
http://www.curtpalme.com/forum/viewtopic.php?t=37810
Athanasios (Nashou) is about the only forum member who is currently posting who is running a blend. He'd probably have the best idea of what's on the market and what you'd have to pay for them.
SC
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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Rattanee
Joined: 18 Jan 2015 Posts: 193
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Link Posted: Sat Jan 30, 2016 12:38 pm Post subject: |
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Thanks for the tips, but it seems like I'm a bit confused about how a setup like this should work. I thought that it was the belnding processor that had two outputs one for each projector, but apparently not... Let's see if I get this right.
Say I want to do a blend at 1920x1200. I get the same source signal hooked up to both processors, each of which will remove half of the image to be output to the projector and feathers the selected edge... Is this about right?
_________________ Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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Rattanee
Joined: 18 Jan 2015 Posts: 193
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Link Posted: Sun Jan 31, 2016 12:58 am Post subject: |
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Ahh thanks Nashou, that cleared up a lot of questions for me. I'm trying to decide if I want to bother giving this a shot...
I think I'd need a new set of tubes for at least one set, (one of my sets has spot-burn even though there's no mask on the tube faces...) and the set I got from Curt was unfortunately destroyed by my friendly local customs people doing sh*t-all to repack the tubes after opening the package... (in the process of getting the post office to pay out on the insurance... hope it ends up going well... fingers crossed)
Aside from that, I'd probably need to replace the optics if I want to get focus to be even enough... and it'd probably change my throw distance... which could be odd as I want to have a third projector for simple thigns like gaming...
It's nice to dream I know...
_________________ Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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AnalogRocks Forum Moderator
Joined: 08 Mar 2006 Posts: 26690 Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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Link Posted: Sun Jan 31, 2016 1:07 am Post subject: |
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Or you could do it anyways just for S&G
_________________ Tech support for nothing
CRT.
HD done right!
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Spanky Ham
Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central
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Link Posted: Sun Jan 31, 2016 8:37 pm Post subject: |
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Why do you want to blend in the first place? You need to answer that question first to see if it is worth the time and headache.
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Rattanee
Joined: 18 Jan 2015 Posts: 193
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Link Posted: Sun Jan 31, 2016 8:52 pm Post subject: |
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Spanky Ham wrote: | Why do you want to blend in the first place? You need to answer that question first to see if it is worth the time and headache. |
Two reasons...
Numero uno: Added brightness is always good... very good in fact... should prolong tube life too as I'm projecting an approx 150" image at the moment, and intend to go somewhat higher when I get my dedicated drywall screen built in a month or so ...
Two: FOCUS and 1080P!
Interlace artifacts... hate them.... need to go 1080P... that however is not satisfactorily sharp on 8" sets... beam spot size is also pretty large due to the size of my 'screen'... so... if I use two PJs to project the same image, they can be closer to the screen, thus decreasing spot size, while splitting the projected image in half, which should help the projectors resolve 1080P while retaining as much focus as possible...
Yes I know vertical resolution will remain unchanged, but since the PJs go closer, I can cheat and use the hardware height control and spread out the raster more vertically... this should help with focus... quite a bit in fact... PROVIDED I can get another set of HD145 lenses so there's no problems with edge focusing... (Or in my case I am trading in my HD145 for a HD144 and buying another HD144 set)
My alternate route is doing a stack and sticking to 1080i... but that would only help with brightness and increased tube life...
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Spanky Ham
Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central
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Link Posted: Mon Feb 01, 2016 2:05 am Post subject: |
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A G90 or 9500 would probably be cheaper.
I am guessing that is 150" wide 2.35.
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Rattanee
Joined: 18 Jan 2015 Posts: 193
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Link Posted: Mon Feb 01, 2016 8:25 am Post subject: |
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TBH I'd stay clear of the G90 because it eats tubes, and I'm not so well off that I can keep buying tubes. My only problem with the 9500 is availability in the EU, and the fact that shipping one overseas costs as much as the set. The only marquee I could get my hands on is a 8000 that's had more then it's fair share of use. I'm kinda cooking with what I got If I can grab the two TV one units under $500, that could be a pretty good deal for doing this.
In all honesty I've not looked at the aspect ratios in-depth for doing this, but right now it's 150" 4:3 diagonal, driven at 1280x1024, 16:9 movies thus have the correct aspect ratio and the full resolution is displayed. I plan to keep one projector doing this size for retro gaming, and two PJs by it's sides, doing a blend, hopefully getting the same height with a 16:9 aspect ratio. If the numbers don't work out, I'll just have the two on the sides do a stack instead...
_________________ Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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ecrabb Forum Moderator
Joined: 13 Mar 2006 Posts: 15909 Location: Utah
TV/Projector: JVC RS40, Epson 5010
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Link Posted: Mon Feb 01, 2016 9:04 am Post subject: |
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Rattanee wrote: | TBH I'd stay clear of the G90 because it eats tubes, |
I don't know who started spreading this idea or why, but I don't recall ever hearing any real evidence to support it.
There's nothing magic about a G90. If you drive a G90 and a 9500 and a 909 to 14fL on a 9-foot wide screen, and run the same source material at the same refresh rates, they're all going to wear prematurely and "eat" the tubes.
The only thing I can recall that could explain where this started is that the G90 has excellent spot control and will allow you to crank up the contrast and get more light output without blooming (and the loss of sharpness that occurs along with it). But, that brightness is optional. If you want it to wear like other 9-inch machines, simply lower the contrast.
SC
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Rattanee
Joined: 18 Jan 2015 Posts: 193
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Link Posted: Mon Feb 01, 2016 9:39 am Post subject: |
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Every other post I've read from G90 owners mentions quite notable green tube wear after 1500 hours or so... I can quite imagine that you are right and it is a setup thing, but I know the urge to keep tinkering with the focus, so I'd probably end up in the same pitfall...
_________________ Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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Spanky Ham
Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central
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Link Posted: Mon Feb 01, 2016 5:33 pm Post subject: |
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As Steve said, if driven the same then the tubes will burn at the same rate. G90 owners have always wanted more lumens, so they crank them. Honestly, I know CRTers are happy with single digit ft/lmbs, but after seeing high teens and up I prefer brighter pjs.
What kind of screen are you planning on using?
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Rattanee
Joined: 18 Jan 2015 Posts: 193
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Link Posted: Wed Feb 03, 2016 4:15 pm Post subject: |
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As for the screen, I'm going to have a drywall built for the purpose, and am still contemplating whether to paint it with anything or just keep it matte. Getting good screen material would be quite costly, and am not sure what I would pick would meet my expectations... since there's noone selling them specifically in country, I can't really test any... well... that is except for chinese crap...
I'm contemplating giving the matte surface a single coat of silver paint, but that may or may not end up too reflective...
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Spanky Ham
Joined: 22 Mar 2006 Posts: 5643 Location: Comedy Central
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Link Posted: Wed Feb 03, 2016 5:41 pm Post subject: |
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Are you trying for scope or 16x9?
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Rattanee
Joined: 18 Jan 2015 Posts: 193
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Link Posted: Wed Feb 03, 2016 8:19 pm Post subject: |
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Not sure yet to be honest. As I will be using it for different aspect ratios, I will have the screen as large as it will physically fit, and install some form of black velour blinding that I can adjust to the appropriate aspect ratio... I am thinking 16:9 though as that is the format I would use most often. If I can do 16:9 as large as I want to, scope should still be pretty good
_________________ Watching atm: Barco Cine 8 Onyx (HD-18 modded)
Working on atm: Barco 808s --> Cine8 Onyx conversion
Retired/shelved units: 2xNEC 9PG, 2xNEC 6PG Plus, Barco Vision 600, Sony VPH-1021
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