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Sh2-86 (NGC-6820)

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APM (TS) FF2.0 Field Flattener performance?

Started by ALCHEMIST1, 04/29/2009 08:59PM
Posted 04/29/2009 08:59PM | Edited 04/29/2009 09:00PM Opening Post
Has anyone here tried using the new FF2.0 that is a TS product distributed through APM dealers such as Teton Telescopes? Apparently this flattener is supposed to work with any refractor in the f/5 to f/7.5 range and has a rather large recommended chip to flattener distance range which varies between 100 to 110mm depending on the focal ratio of the refractor used. I just acquired one from Mark at Teton (outstanding service BTW) and I want to use it with my APM 130/780 LW triplet Apo and the QHY8 CCD camera. If anyone has any real use experience with this FF2.0, I'd greatly appreciate input on useage and performance that I can expect with it. Any images collected with this FF2.0 and a comparison image without would also be welcome. Thanks.

Anjal.