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16" Dall-Kirkham rebuild
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14-03-2024, 02:00 PM
Stefan Buda
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Join Date: Jul 2013
Location: Melbourne, VIC
Posts: 855
Thanks Rod!
The Ross Null test is just about as useful as the Ronchi test would be if the mirror was spherical. In other words, it becomes difficult to interpret when you approach the required precision of better than 1/4 wave.
Stefan Buda
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