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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Sat Dec 20, 2008 6:12 pm Post subject: tinting glycol...who has done it with success? |
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I'm definitely going to do this with my Barco...and I want to know who has long term success with this and what ink did you use?
In reading the how to, I noticed that the red was already correct before adding tinted glycol...and the result after was too much red or at least a deeper red than the standard calls for...makes me think that just tinting the green might get the best colors possible from a Barco..any thoughts?
Ben
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sat Dec 20, 2008 6:18 pm Post subject: |
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Steal the glycol from a Sony 12xx series burnt tube.
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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Sat Dec 20, 2008 6:25 pm Post subject: |
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stolen glycol might be cloudy (but I have already consdered it as an option)...I wouldn't mind replacing with new tinted glycol.
Where might I find the ink?
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sat Dec 20, 2008 6:28 pm Post subject: |
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| benareeno wrote: | stolen glycol might be cloudy (but I have already consdered it as an option)...I wouldn't mind replacing with new tinted glycol.
Where might I find the ink? |
I wouldn't think that's as likly with the AC tubes. There's no alauminium for the glycol to react to. No?
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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Sat Dec 20, 2008 6:28 pm Post subject: |
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Is that the reason some glycol gets cloudy?
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sat Dec 20, 2008 6:31 pm Post subject: |
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| benareeno wrote: | | Is that the reason some glycol gets cloudy? |
Yes, as far as I remember reading here. Glycol is corrosive and reacts with the aluminium and forms crystals in suspension.
I know someome will correct me if I'm wrong. 
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Zebu Fellenz
Joined: 21 Dec 2006
Posts: 2567
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| Posted: Sat Dec 20, 2008 6:49 pm Post subject: |
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I wouldn't mess around with tinting glycol, the colored glycol is easy to find in burnt tubes and you never really know the long term effects of mixing your own. I used glycol out of a Barco 801 in by Marquee and it worked great, no cloudy glycol and the barco was ~14 years old.
Erik
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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Sat Dec 20, 2008 7:05 pm Post subject: |
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It's not like I'd be making a nuclear bomb...if it doesn't work out, I don't think I'd be devastated.
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stuffandpuff
Joined: 30 Jul 2008
Posts: 69
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| Posted: Sat Dec 20, 2008 8:37 pm Post subject: |
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| benareeno wrote: | | It's not like I'd be making a nuclear bomb...if it doesn't work out, I don't think I'd be devastated. |
I think the point is, it's a much easier and there is no guesswork involved if you simply use the colored glycol from an old Sony. I have some tubes from a 10XX in great condition if you're interested. The colored glycol is crystal clear. The only thing is I'm not sure if there is enough to fill the slightly bigger tubes of an 808. Pay shipping and they're yours.
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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Sat Dec 20, 2008 8:41 pm Post subject: |
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Done...where do you live?
Would you crack the necks so we can ship 'em cheaper?
Ben
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Sat Dec 20, 2008 8:50 pm Post subject: |
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Ive done it, but be careful because it's very easy to add too much color. Good news is after 2 years of sitting on a shelf the Dye is still fully emulsified.
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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Sat Dec 20, 2008 9:01 pm Post subject: |
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where did you buy the dye?
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Sat Dec 20, 2008 9:19 pm Post subject: |
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I forget where,but it was a musical instrument builders supply place. It's called Stewart Mcdonald Colortone Concentrated liquid stain. Cherry Red and Bright Green. It one takes 1 or 2 drops of each with green being the more concentrated (use less).
http://www.stewmac.com/shopby/product/5032
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Sat Dec 20, 2008 10:28 pm Post subject: |
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dragan, what did you use a reference? How did you know when you were at the right mix?
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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Sat Dec 20, 2008 11:13 pm Post subject: |
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Kal,
that link is the reason I pose the question about tinting the red...red seems bang on before the tinting..so why bother tinting it?
Have you measured your red primary?
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Sun Dec 21, 2008 1:08 am Post subject: |
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| benareeno wrote: | | Kal, that link is the reason I pose the question about tinting the red...red seems bang on before the tinting..so why bother tinting it?Have you measured your red primary? |
I used tinted c-elements and just matched them visually. According to the charts that were posted here in the past both Red and Green on unfiltered CRT is off, Red towards Orange and green towards yellow.
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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| Posted: Sun Dec 21, 2008 1:50 am Post subject: |
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| benareeno wrote: | Kal,
that link is the reason I pose the question about tinting the red...red seems bang on before the tinting..so why bother tinting it?
Have you measured your red primary? |
My red and green have tinted c-element since I'm LC.
I did measure them and talk about it in my guide here: https://www.curtpalme.com/forum_archived/viewtopic.php@t=10457.html
Measurements:
IMHO, green and blue are almost bang on. You won't notice the subtle difference. And red is simply slighly oversaturated. It's not leaning into orange at all which is the typical problem. I'm really happy with the colours on my Zenith 1200.
Here's an important graph to consider:
Green is typically the problem. A stock green on a CRT projector without tinting tends to push yellow which just doesn't look good.
Again, for full details, explanations, and suggestions, see my guide here: https://www.curtpalme.com/forum_archived/viewtopic.php@t=10457.html
I tried to really summarize everything there is to know about getting proper primaries on CRT and digital projectors in part 8.
Kal
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benareeno
Joined: 22 Mar 2006
Posts: 1614
Location: ottawa, canada
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| Posted: Sun Dec 21, 2008 2:27 am Post subject: |
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Kal,
I read all that...and if you look at the primaries of the unfiltered Barco, the red seems to be bang on. I was simply saying, perhaps there's no need to filter red on this projector. Of course green is required...I understand that, and I fully intend to do it via colored glycol.
Are SMPTE C primaries the same for SD and HD color spaces?
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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| Posted: Sun Dec 21, 2008 4:38 am Post subject: |
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| benareeno wrote: | | Are SMPTE C primaries the same for SD and HD color spaces? |
Nope. There are slight differences. In software (like ColorHCFR) you choose either SD or HD solely for the reason to see how close you are to the SD or HD primary numbers. You can run the software and try toggling between both and see in this menu in ColorHCFR:
Kal
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