Alpine Astronomical Baader 2" NX4/C90/ETX Expansion Ring (Matte Black)

Alpine Astronomical Baader 2" NX4/C90/ETX Expansion Ring (Matte Black)

Alpine Astronomical Baader 2" NX4/C90/ETX Expansion Ring (Matte Black)

B&H # ALNX4SC MFR # NX4-SC
Special Order
Expected availability: 7-14 business days

Product Highlights

  • Baader 2958500A Expansion Ring
  • Meade ETX/Celestron NexStar 4 Conversion
  • Converts 1.4" Male to 2" Female Thread
  • 1.4" Female Thread on Telescope End
  • 2" Male Tread on Accessory End
  • 1.25" Filter Holder with M28.5 Thread
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Alpine Astronomical NX4-SC overview

  • 1Description

Use the Baader 2" NX4/C90/ETX Expansion Ring from Alpine Astronomical to connect components with 1.4" male threads to devices with 2" female threads. It is compatible with the Meade ETX and Celestron NexStar 4 telescopes but will also work with the Celestron C90 spotting scope.

In the Box
Alpine Astronomical Baader 2" NX4/C90/ETX Expansion Ring (Matte Black)
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Alpine Astronomical NX4-SC specs

    Compatibility Meade ETX, Celestron NexStar 4 telescopes
    Celestron C90 spotting scope
    Threads 1.4" female thread
    2" male thread
    M28.5 thread for 1.25" filters
    Dimensions Inner Diameter: 1.1" / 28.0 mm
    Outer Diameter: 2.2" / 56.0 mm
    Optical Path Length: 1.0" / 2.5 cm
    Weight 1.97 oz / 56.0 g

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