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Old 04-04-2015, 12:16 PM
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Merlin66 (Ken)
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Merlin66 is offline
 
Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,927
Carton lens

Matti,
You have my interest.
I need to use such a lens in a spectroheliograph trial set-up.
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