Quote:
Originally Posted by gregbradley
Strehl ratios on compound scopes are typically way lower than for an APO refractor. I am not sure what you were referring to with Matt's scope but .99 sounds like a high end APO refractor not a compound scope.
Greg.
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Hi Greg,
i was referring to this
http://www.iceinspace.com.au/forum/s...d.php?t=142506
10" F6 for Newt that came in at .996
i agree that you only usually see these types of numbers with top refractors. i am very happy with the .96 that i will be getting. definitely top quality optics. i would love to see a test report of a comparable planewave CDK, i would suspect that the iDK would compare rather favourably.