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Originally Posted by Ambermile
 Beats me that grinding... I bought mine roughly ground to f/4.8 but parabolic. It's away in a few days to have final configuration and alumising/quartz coating. I have a set of steps 
Arthur
(if you're interested... http://myweb.tiscali.co.uk/ambermile/dob.htm ) |
Nice telescope.
It's a different style.
Having a narrow mirror cage do you experience problems with stray light?