Sorry, Heather - as I don't have those, I can't measure their density. Neither the official Kood website ( Welcome to KOOD) nor the dealers I know off, give any facts.
Ben
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Pentax user for 25+ years; now K10D, K20D, LX, MX, PZ1p..., 40 lenses, Mamiya 645 system, 4x5 Large Format gear, analogue + digital darkroom
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