Using Polishing Pads to Clear the Back of a Telescope Secondary Mirror
30:47
12 inch f4.9 Telescope Mirror Part 4
12:56
How to make Very Flat Optical Surfaces on Glass
17:04
How does a "first surface" mirror work? (2^15 sub special!)
15:15
TELESCOPE MIRROR MAKING HOW TO: Fine Grinding
11:24
Preparing to Grind a 22" f/4.0 Telescope Mirror
36:01
Telescope Mirror Making: Superb Polish with Cheap "Slow, Messy" Slurry
14:55
Building a 20" F/3.3 Renegade Telescope: Part 1
39:44