Piece of blue glass on a string?

athanasius80 · Jan 30, 2009

I was just going through an old LF setup I bought off of e_ay and found a piece of deep blue glass not quite 2" in diamater hanging from a string. Its just a piece of glass. I've stumbled across these before and I'm wondering if people used these for metering before modern light meters.
Any ideas?
Thanks!

David A. Goldfarb · Jan 30, 2009

That's probably a monochrome viewing filter. Zone VI sold one. The idea is that you can look through the filter to get a better idea of the tonal relationships that B&W film sees.

P.S.--it's okay to say "eBay" here.

glbeas · Jan 30, 2009

Actually they are used for helping to visualise the scene in B&W. This works to show it like blue sensitive film will see it

Piece of blue glass on a string?

athanasius80

David A. Goldfarb

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