Can I obtain an interferogram showing the performance of my refractor?
No. Each optic that we produce is evaluated throughout the final figuring stage with interferometry. When the figuring is complete, we store the final result for our future reference. We considered providing these with each refractor, however decided that it would cause confusion as most people do not know how to interpret such results. The largest factor was concern that our customers would compare their results with one another in order to assert the superiority of their own instrument. This, in turn, would result in craziness on the used market. Such comparisons are meaningless since each lens is figured to our very high standard and any differences are insignificant at that level.
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