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Old 11-08-2009, 08:28 PM
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Merlin66 (Ken)
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Merlin66 is offline
 
Join Date: Oct 2005
Location: Junortoun Vic
Posts: 8,904
My beamsplitter is about 0.7mm thick, on a VERY bright star image ( just tested it again with the artificial star) there's a faint secondary image visible - no colour?
The straight through image has the same.......
The cost of using standard beamsplitters???
( The old 50/50 cube splitter obviously is the optical equivalent to the pellicle plates and has no secondary reflections)
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