Might be worth trying on inexpensive finder devices like
Telrads and Rigels. Don't think I'd try it on a $5K lens
unless the lens maker had certified it or signed on.
I've got protective windows on some of my smaller scopes;
might try it on the window but not the lens.
Telrads and Rigels. Don't think I'd try it on a $5K lens
unless the lens maker had certified it or signed on.
I've got protective windows on some of my smaller scopes;
might try it on the window but not the lens.
