This has been a very interesting thread, I have learnt much, thank you gentlemen.
If a University/Gov dept/Professional Obs/Military purchased a premium scope, surely they would require absolute certification of some sort for an approval process. Seems from yr discussion, organisations such as these would not rely on reputation or a relative/subjective test, so then wouldnt a many 1000 point strehl test be the most comprehensive of all of them, that can be described in absolute terms. It seems to me a glass pusher, such as some here, would have access to/intuatively understand/require different specifications to a commercial maker selling to a competative global commercial market.
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