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Re: [ATM] Preannouncement (ECDK)
Hi Richard,
Monday, April 2, 2007, 5:35:25 PM, you wrote:
RFLRS> If I've done my arithmetic correctly, the diameter of the
RFLRS> maximal blank that can be cut from the triangles is about
RFLRS> 18% of the diameter of the corrector cut from the square.
17.1573% allowing no edge grinding, and if your cutting is perfect :).
Your corrector lens is at 15.38% so you're well in. Nice idea. I've
often seen B270 in conjunction with Schmidt corrector plates. Why?
--
Best regards,
Richard in the UK
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