Thread: ED80 vs 8" reflector
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Old 01-07-2018, 11:30 AM
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Merlin66 (Ken)
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Join Date: Oct 2005
Location: Junortoun Vic
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Hmmm
Some of the current mirror coatings can give much better than 0.86 reflectivity.
The mirrors I use in the spectrographs can get >0.92.
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