If so, I'll start with a guess:
4.3" f/9
The manufacturer (assuming it is Synta)could use the tubes for the 4.7" f/8.3 achro.

Posted 04 November 2003 - 09:17 AM
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Posted 05 November 2003 - 01:42 AM
Orion could make a great deal of money and do us a favor who have obtained the 80ed, if they could produce a 100mm ed cell sold separately, that could fit on the end of the 80ed OTA and with some simply way to retrofit or use the same baffles.
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