|
To answer your question, yes.
A number of manufacturers also supply quantitative test data with their optics, some test their optics but do not supply it to the customer (eg Astro-Physics as many can mis-interpret the data), and some manufacturers only guarantee your satisfaction and not the quality of their optics.
As far as Australia goes. Sadly I am not aware of anyone who does inteferogram testing of optics.
As a ball-park however, the "Star Test" detailed in Dick Suiter's book is an excellent resource, and well worth a read on how to perform.
|