12 inch f4.9 Telescope Mirror Part 1
32:26
12 inch f4.9 Telescope Mirror Part 2
30:47
12 inch f4.9 Telescope Mirror Part 4
14:55
Building a 20" F/3.3 Renegade Telescope: Part 1
11:24
Preparing to Grind a 22" f/4.0 Telescope Mirror
1:10:16
Casting a light weight telescope mirror (all steps in the process)
39:44
How to grind a mirror for a telescope
10:59
Grinding a 25-Inch F3 Telescope Mirror: Thinning and Flattening the Back
10:07