Author Topic: Artficial star distance?  (Read 544 times)


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Re: Artficial star distance?
« Reply #15 on: February 09, 2018, 11:23:54 AM »
For a star test the incoming wavefront needs to be as flat as possible. This requires the pinhole to be placed at the infinity focal point rather accurately for generating the beam.

It's much better to test your scope using autocollimation. You don't need long hallways and the sensitivity of the test is twice that of the ordinary star test.