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Old 31-01-2019, 07:00 PM
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Merlin66 (Ken)
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Merlin66 is offline
 
Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,904
I’ve used a Genesis 100/500 to get down to 3700A....
The UV (and IR) absorption >3600A and <11000A for Standard lenses isn’t that bad....
My current spectroscopy with C11 gets good results across the whole spectrum.
HTH
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