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Borg M57 Helical Focuser DX LIII

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M57 Helical Focuser DX LIII

Borg/Hutech/Oasis part 7861

  • Light path : 46mm to 81mm
  • OD : 72mm
  • ID : 49mm
  • Weight : 194g
Excellent condition. Retails for $250