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Topic: Cyan GLASS filter ...
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Osi Osgood
Film God
Posts: 10204
From: Mountian Home, ID.
Registered: Jul 2005
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posted June 18, 2019 12:01 PM
Yes Melvin. It helps immensely!
Thanks for that link, some fairly affordable prices as well!
Just to add, I actually found that blending different "gels" or plastics, I found that a light cyan and a light green, together, tended to give the best results for "restoring" color to a projected print, though as i said earlier, darkish.
Though that cyan filter will certainly help, what would be perfect is one of those "sliding scales" glass filter that goes from a cyan to green from left to right and allows you to "adjust" the color to you're specific need.
Those are pretty rare, however.
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"All these moments will be lost in time, just like ... tears, in the rain. "
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Matthieu van der Sluis
Master Film Handler
Posts: 373
From: Barendrecht, The Netherlands
Registered: Aug 2017
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posted June 21, 2019 05:32 AM
Hey Luigi.
Cyan is in the middle of Blue and Green.
Cyan, Magenta and Yellow are secundairy colors,
Red, Blue and Green are Primairy colors.
Magenta is in the middle of Blue and Red.
Yellow is in the middle of Green and Red.
In the centre of all perfect White.
This Diagram shows how far the human eyes can see colordepth.
Clever indeed, correcting decoloration with a filter.
I don't think the decoloration of film is consistant enough to get it right all the time, otherwise it might be possible to messure the exact tint for the color filter thats needed to get 6500Kelvin, on a GS1200 Xenon that is. Most other projector bulbs are to warm and around 3500Kelvin. I can tell my calibration software to aim for 3500Kelvin instead.
During calibration of the digital projectors, I place all 6 colors perfectly on their spot, for their Heu, Luminance and most of the times Saturation with the Whitebalance and CMS (Color Management System).
[ June 23, 2019, 06:14 AM: Message edited by: Matthieu van der Sluis ]
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Osi Osgood
Film God
Posts: 10204
From: Mountian Home, ID.
Registered: Jul 2005
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posted July 12, 2019 11:16 AM
UPDATE!
I did get my cyan glass filter. It does make a grand difference, (all depending on the level of fade, of course). I also got a new light green filter of the same size as the cyan filter and the neat thing is that they screw onto each other, (then i just take a light bit of tape and put it on the lense).
The only problem with having both on there, however, is, even though the light green one is in fact, light green, it completely overpowers the cyan blue filter, so, I like my idea of combining the two, but I'll have to see if I can find an even lighter green one, just a tad bit O green, and THAT will probably work!
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"All these moments will be lost in time, just like ... tears, in the rain. "
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