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David_Web
Joined: 02 May 2007
Posts: 418
Location: Sweden
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| Posted: Sun Dec 21, 2008 3:33 pm Post subject: |
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Filtering red IMHO makes a huge difference. The image just looks deeper and less hazy. Hard to explain. Sure it might be too saturated in numbers but as far as I care it adds to the picture.
btw the difference is bigger when filtering red than filtering green than the CIE diagram would lead you to believe.
The CIE diagram is technical and in no way linked to our perception.
The reason for filtering is to remove yellow/orange which is present in both colors.
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secstate
Joined: 20 Mar 2006
Posts: 720
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| Posted: Sun Dec 21, 2008 4:23 pm Post subject: |
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I tinted the green and red tubes in my Barco Data 808s when I installed my new p16s in it. I used Bjorn's recipe using inkjet and pen ink. This gave me glycol that looked like the Sony glycol. So far with 500 hours on my tubes and 18 months to 2 years (cannot recall specifically) the tinting is as good as new. I just couldn't bring myself to use old glycol as I had drained too many old tubes to see what the old stuff looks like. The ink I bought was just generic inkjet refill ink and I put the number of drops recommended by Bjorn. I am very happy with the result. I will say that some folks did report Bjorn recipe fading but I have not had that problem so far and don't expect to at this point. You can find Bjorn's instructions here: http://home.c2i.net/tomcat/ .
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hailtoby
Joined: 29 May 2008
Posts: 99
Location: Cook County, IL
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| Posted: Sun Dec 21, 2008 6:00 pm Post subject: |
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This is an interesting thread and really relevant since VDC isnt making bellows anymore. What old sony tubes have the colored glycol in them?
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