Quote:
Originally Posted by Stefan Buda
I would buy new but no one sells them any more.
I prefer thin ones and old chipped mirrors would suit too if there is enough thickness left for machining down to 25 mm for the 10" and 15 mm for the 5".
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I may have a 10 inch mirror for sale-- just purchased another one, as my telescope had lost its aluminium coating. But so not know if my mirror is Pyrex. Have to try out the new Second hand one first -- Don't know its F number. Old one is about f5.