I'm thinking of having another go with this project.
Firstly I'm going to acquire some quality
first surface mirrors.
I understand 1/20th wave is the best quality, least error, to aim for?
I need a couple,
one 65mm diameter,
one 35mm diameter.
Any suggestions on the best source for these would be appreciated.
Then, if they show that the objective is poor quality, I'll acquire a better one.
Thanks for looking...
