Видео с ютуба Optical Pitch Lap

More Behind the Scenes - Lap Pitch Pour

Channelling a Pitch Lap for a Homemade Telescope Mirror

How to Make a Pitch lap and Polish a telescope mirror!

Making Pitch Lap 5

How to make Very Flat Optical Surfaces on Glass

prepping a pitch lap

Heating up pitch for making a telescope mirror polishing tool

Optical Lapmaster Machine for Polishing Flats of Glass pt.2 (short impression)

Optical lapmaster machine for polishing flats of glass pt.1 (short impression)

Polishing an optical flat, The sixth side of a double sided three flat project Part One

Pitch Lap Part One