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Borg Helical Focuser S - 1.25" (non-rotating)


SKU: B7315
PRICE: 85.00

Borg Helical Focuser S - 1.25" (non-rotating) Description

This helical focuser from Borg is a popular replacement for the stock helical focuser on the Lunt LS50 solar telescope. Use this adapter to attach the Borg to the Lunt.

The deluxe version of model 4317, this non-rotating helical focuser includes index marks on the outside of the barrel, which greatly facilitate focusing when switching between CCD camera and eyepiece. In addition to visual use, this focuser also works well for fine focusing of CCD cameras, digital still cameras and video cameras. The front attachment is a metric M36.4 P1.0 male thread, or a 1.25" eyepiece interface when used with adapter 7316 (which includes threads for 1.25" eyepiece filters). The rear attachment includes a T-thread for direct connection to many CCD cameras.

Specs

  • Index: 50 microns
  • Length: 50 to 60 mm
  • Travel: 10 mm travel
  • Weight: 80 g
  • A: 31.7 mm (1.25") sleeve, M42 P0.75 Male
  • B: M36.4 P1.0 Male
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