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  1. D

    Lowest magnification barlow?

    Just remembered why don't you get a second Kowa extender and get 64-154x with the Kowa Zoom? It would result on much higher image quality than the Nagler zoom with a barlow and the extender, with the wider AFOVs as bonus... Yves wasn't happy using 2 extenders 2 extenders with the Kowa zoom but...
  2. D

    Lowest magnification barlow?

    It seems you never looked through a modern wide-field zoom... At higher mag position usually have >70ยบ AFOV
  3. D

    Lowest magnification barlow?

    I read that Harry Siebert is better contacted by phone and is slow replying to e-mails due to too much work... Another solution is to use 1.25" GPC (that Joachim has mentioned on the different Baader format), if the nagler zoom has filter threads. The GPCs - Harry calls these OCAs - can have...
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