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Re: [ATM] The 16 inch Ultrathin ronchi pics
David,
These are nice Ronchi images, and show a lot. I agree that the line
leaning is clear in your comparison image.
I'm still curious what you intend to do about getting the correction
closer. Do you see the evidence in the Ronchi images of
undercorrection? If you figure from Ronchi, how do you intend to
measure the correction to address that problem? From Dale's analysis,
the correction error is several times more objectionable than the
astigmatism. I wouldn't worry about the astigmatism too much until
that is brought under control.
If it seems useful, I will run 50 lpi Ronchi simulations with your
mirror and with a perfect f/3.5 for comparison. I won't be able to
get to this until Monday, however.
--
Steve Koehler
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