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About marcus_z

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    Ingolstadt, Germany

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  1. marcus_z

    Which Takahashi refractor?

    My Takahashi is purged with nitrogen, oxygen and depending on conditions dihydrogenmonoxid gas. That's about everything you need for things like the the eagle nebula.
  2. marcus_z

    Takahashi FC-100 DF £1480

    Yes, tie it to your mount as hard as you can
  3. Does anyone know why some Takahashi serial-number plates are golden, and some are silver?
  4. Phil, there's a gap between the focuser housing and the MPA at the sides. It seems like your MPA-TAK2.7 technically works, but that the MPA-TAK2.5 closes the gap here...
  5. Check TeleVue's recommendation here: Eyepieces for 6" to 10" Dobsonians with 1,200mm Focal Lengths basically they recommend Ethos 21, 13, 8, and 6. I think that's a perfect set. If you use filters quite often, then you could replace the Ethos 21 with the Nagler 31. Temporarily I had the following set: Nagler 31, Ethos 13, 6, 3.7 that's also something to consider. So I would recommend to plan three to four 100° eyepieces.
  6. For Sale: Vixen Advanced Polaris Altazimuth (APZ) Modular Mount condition: brand new in box (tried out once) price: 389€ + 15,99€ postage (EU-wide)
  7. marcus_z

    Wanted: Vixen SX2

    SX2 anyone?
  8. contact me via PM please
  9. marcus_z

    Wanted: Avalon T-POD 130

    contact via pm please
  10. marcus_z

    Wanted: Vixen SX2

    The SX2 is still of interest :-)
  11. That might be, but one would not even think about upgrading the focuser of a 500€ scope with a 500€ focuser. Focusing a 2,4mm eyepiece in a loaded turret which weights 1,5kg is "When only the the best will do!"
  12. Recently I acquired a second-hand FC-100DC with MEF-3. I don't think that the MEF-3 is the optimum, because there is some flex in the sheetmetal plate that attaches to the housing. I expect the FTF micro pinon to be more precise due to less backlash. But certainly since Tak focusers vary quite a bit one might be equally satisfied with his/her copy.
  13. marcus_z

    Tak FC100DL F9

    Using a dovetail which is longer than the saddle of the mount usually does not make sense. The geometrical moment of inertia of the FC-100D tube is much higher than that of the dovetail. So basically you allow your setup more flex if your dovetail is too long.
  14. marcus_z

    Tak FC100DL F9

    With my DC and DL I use the Primalucelab rings with a 140mm Vixen-style bar. I never doubted the stability of the rings and/or bar.
  15. before asking third party companies, I'd contact Baader Planetarium directly: https://www.baader-planetarium.com/en/contact-us/

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