Large Homemade Telescope Making Project - Google SitesDIY Mirror Grinding and Telescope Making . worked okay for general viewing, but a spherical mirror of this size and focal length has a ~1/3 wave rating at best.diy grinding high quality telescope lens,Roger's Refractor Building Page - Bob May'sHow to grind and polish a refractor lens and have it work well. How to really make a decent Refractor . even good Newtonians in the amount and sharpness of detail they will show. . Many books exist which detail these processes [my personal favorite is Jean Texereau's "How to Make a Telescope" (Willmann-Bell, 1984)].
diy grinding high quality telescope lens