The ultimate telescope mirror

[tornado33]

Hi
After a great talk on Telescope Making at the Newcastle Astro Society meeting last night, I
found this company that makes super lightweight but stiff telescope mirror blanks
http://www.hextek.com/
A big lotto win would see me getting one in short order
Scott

[rmcpb (Rob)]

Only a Lotto win?? You may need a bit more me thinks

[h0ughy (David)]

you go and buy It and I will bring the camera Scott!!!!!!!

[tornado33]

Will do

[Orion]

Originally Posted by tornado33

Hi
After a great talk on Telescope Making at the Newcastle Astro Society meeting last night, I
found this company that makes super lightweight but stiff telescope mirror blanks
http://www.hextek.com/
A big lotto win would see me getting one in short order
Scott

Yes Denis knows his stuff. It was a good talk I thoroughly enjoyed it.
I'm just wondering if these hollow mirrors are as good as solid Pyrex mirrors?

[monoxide]

well i suppose if its hollow its not going to take as long to cool as a solid lump of pyrex, but the real performance is in the figuring not the substrate