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Old 22nd July 2021, 10:45 AM
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MartyNL MartyNL is offline
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Join Date: Sep 2010
Location: based in The Netherlands
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Default Source of 100x100 GLASS contrast filters

Hi folks,
It's proving to be a challenge for me to find a yellow-green 100x100 (4"x4") contrast filter in GLASS.
I previously used Heliopan but it seems they're no longer available. I've also contacted some of the usual suspects and I'm waiting on responses: formatt hitech, tiffen, Lee. I may try Schott glass directly.

It might just be that the optical qualities/properties of resin filters makes glass redundant, I don't know?

Anyway, any sources would be appreciated.
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