Quote:
Originally Posted by Merlin66
JA,
It's not very clear from the illustrations exactly what the transmission at 390nm would be.
One of them would probably do......
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Hi Ken,
the ZB1 filter is the
RED coloured transmission curve I posted above, there being 3 curves shown on the same graph. reading from the graph, I would make the ZB1 (red curve) transmission as 72 to 73% at 390nm.
Best
JA