Last night, I pointed the scope to the sky first time and made the star test.


72FL F4 (prototype) with FTF-M57

As expected, all stars are very sharp corner to corner entire full frame sensor. I don’t think BORG needs any design change mechanically and optically. So I’m sure they will go ahead the production as it is.

As usual, above F4 configuration can be converted into

  • F6 with 7108
  • F7.8 with 7215
  • F5.6 prime focus for visual observing

I hope it will be commercially ready by end of this year.



~ by tedishikawa on April 13, 2019.

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