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Mirror Re-coating
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20-09-2012, 07:43 PM
MrB
(Simon)
Old Man Yells at Cloud
Join Date: Jan 2007
Location: Rockingham WA
Posts: 3,435
Cheers Mark
I wonder how much extra to get the secondary re-coated at the same time as the primary?
The silver option is looking good for a newt astrograph:
Aluminium 91%^2 = ~83% system reflectivity
Enhanced 95%^2 = ~90%
Silver+prot 98%^2 = ~96%
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