8 inch Maxsutov

I remember R T Jones telling us that the primary mirror was first figured to be a good sphere.
Then the correcting lens was placed just in front of it for testing at the radius of curvature.
With the correcting lens in place the combined pair were tested as if they were a single paraboloid.
In that way the correcting lens was figured.

 

Return to calling page alt_31

Return to calling page alt_51