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Sub
f/4 PrimaryMirrors
(Prices upon request)
All
orders are custom manufactured, one at a time. Pricing is upon request
and structured around your exact requirements. All of our sub f/4 primaries
are guaranteed to be fully corrected to the edge. Each one is painstakingly
figured & tested by both double pass auto collimation-null testing
and interferometry. Your 100% satisfaction is guaranteed!
These sub f/4 primary optics will make outstanding “short”
RFT telescopes or fantastic imaging telescopes. We can do optics as
fast as f/3.3, double pass - null figured & tested. We use Pyrex
or better substrates, but we can also use plate glass or BK-7 if substrate
costs are an issue.
A 50% deposit is required upon acceptance of terms of the order and
the balance is due just prior to shipping. We have reasonable and realistic
lead times. We reserve the right not to honor any previously posted
pricing. We reserve the right to adjust pricing due to fluctuations
in raw material costs beyond my control. Please contact me to discuss
your requirements in further detail.
Please allow us an opportunity to quote you a price on your next "fast"
set of optics

A 20" f/3.95 primary tested via interferometry
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