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Old 18th November 2021, 11:36 AM
Collas Collas is offline
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Join Date: Dec 2010
Posts: 971
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B+W still make them after taking over the licence from Carl Zeiss. The B+W filters are made of glass.

They make an extensive range of cleaning products! I've used the Lens Cleaner Pump Spray in the past on plastic spectacle lenses and glass filters and it does a good job. I've also used Zeiss cleaning fluid and Lee Filters Clear Lee and they all seem to work very well.

https://schneiderkreuznach.com/en/ph...ning-transport
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