Ron, the BINTEL 16inch F4.5 mirrors claim 1/16 wave accuracy or better
..................if that's true, it MUST have a very good optical performance if mounted and supported correctly.
I have noticed that it is very hard to find a ready made 18 point flotation cell for such a large mirror(or any cell for that matter). Same goes for the secondary
?????
What gives here?..............do I have to make these ?.............if so, any links?
B.T.W...............how much is Mark's 16'' mirror?