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Old 10-02-2013, 10:37 AM
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Satchmo (Mark)
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Satchmo is offline
Join Date: Dec 2005
Location: Sydney
Posts: 1,858
The closest thing I can find there to a 12" RC there is a GSO 10" RC and the Strehl ratio tested at 0.27 ....very poor optical quality.

I wasn't suggesting an optical problem - there is much more to do with opto - mechanical issues that can kill a telescope.

Can anyone remember who was testing the 12" RC?

Originally Posted by bert View Post
I just had a look at wolfgang rohr's test of gso rc mirrors. My German is poor and most of the diagrams are beyond me.

Mark maybe you could translate?
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