Ronchi Testing

[skyleme]

very well

i make the telescope mirror myself

shall we be friends

[mijnvideos]

Interesting to see real life errors in a mirror .

Thanks for posting .

[Messiermarathon]

Thanks for watching and commenting!! I have about 20 different mirrors I am refiguring and testing for people. I am about to post another video of before and after...also describing what strokes I used to correct.