Re: [ATM] Klaas Honders Astrograph

["Bob May" <rmay@nethere.com>]

Which tolerances do you think will be better served with fused
silica?  BK7 should be quite well enough as one of the specs is
probably that the telescope needs to be all made of glass from
the same melt..  This insures that the indices are all the same
for the different lenses.
Bob May
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