Ronchi and Foucault Tests on the 20" f/4.5 Quartz Telescope Mirror Published 2010-04-29 Download video MP4 360p Recommendations 11:24 Preparing to Grind a 22" f/4.0 Telescope Mirror 21:18 Camera Mirror Lenses Part 1: Visual and Interferometric Testing 43:38 Telescope Optics Testing 30:47 12 inch f4.9 Telescope Mirror Part 4 17:30 Тестирование качества оптики телескопа 25:28 Budget Tracking & GoTo Options Including OnStep for Astrophotography 14:55 Building a 20" F/3.3 Renegade Telescope: Part 1 10:59 Grinding a 25-Inch F3 Telescope Mirror: Thinning and Flattening the Back 24:15 Introduction to Telescope Mirror Polishing and Ronchi testing of Mirror 28:24 The Spike Jones Story - Part 1 21:48 James Webb Telescope Just Detected First Ever Evidence Of Dark Matter 39:44 How to grind a mirror for a telescope 11:41 Applying the Tin and Silvering Solutions 17:58 Newtonian Collimation using the OCAL collimator 09:12 Making a 33 cm f/4.8 mirror on the Mirror-o-Matic 6: polishing the surface with a pitch lap 01:53 Don't do it 14:50 How to Make a Parabolic Mirror: Bernoulli and Euler Equations 12:58 Techniques for Refiguring an 18" f/4.4 Telescope Mirror 46:44 RASC-TC Thin Meniscus Mirrors 13:58 Review of the 15" Obsession UC (Ultra Compact) Dobsonian Telescope! Similar videos 02:03 Ronchi Foucault tester stellafane style 01:28 Ronchi Test Aluminum telescope mirror D=400mm f3.8 3.7KG。 Astigmatism needs to be addressed 00:20 Foucault Test #003 00:28 Foucault & Ronchi Tester 14:09 New Foucault + Ronchi Tester 02:14 Ronchi / Foucault Test, My HubbleOptics has a HILL!!! 07:46 Understanding Ronchi Test - English 00:22 Ronchi Tester 02:15 Camera Holder for Foucault, telescope mirror testing, Foucault and Ronchi 04:30 Foucault Test 00:09 foucault tester 05:28 Ronchi Test Setup 01:56 iPhone Foucault Telescope Mirror Tester 03:48 Foucault test 150mm 05:12 How I align my Foucault Tester and Mirror 00:26 Applying Ronchi test to a partially polished 12.5-inch telescope mirror 00:41 Ronchi test on 4.5" part I More results