Expansion Ring M55a to M68i

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Expansion Ring M55a to M68i

# 2458234

€ 47.00 Price excl. German VAT tax (19%): € 39.50

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  • Baader M55a/M68i Adapter - converts a M55 female thread into a M68 female thread
  • suitable for all Baader 2" mirrors (# 2456115, 2456117, 2456100) or prisms with female M55 thread (#2456120)
  • for largest aperture with 2" star diagonals and makes the adaptation of a M68 quick changer behind the star diagonal possible

Product Questions and Answers

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Hello, please is this Expansion Ring M55 thread compatible with M55 thread on BDS NT Focuser?
Question by: Tomáš Mojžiš on Nov 4, 2020 11:42:00 AM | 1 Answer(s)

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Expansion Ring M55a to M68i

This adapter allows you to changer your Baader 2" Diagonal Mirror (# 2456115, 2456117, 2456100) or Prism from M55 Female Thread (# 2456120) to M68 female thread. This allows you to integrate the mirror without reduction to 2" in an M68 light path ,

To attach the adapter to your mirror you must first remove the 2" barrel and the M55 / 2" UNC threaded ring from the housing of the mirror. For this, the face spanner # 2450062 is recommended.


Additional Information

Manufacturer Baader Planetarium
SKU (#) 2458234
EAN Code 4047825039187
Net weight (kg) 0.03
Optical length (mm) 8
Inner Diameter / Clear Aperture (mm) 51
Inner Connection (eyepiece/-camera-sided) M68 x 1
Outer Connection (lens sided) M55
Compatible Brands Baader Planetarium
Type of Adapter Reducing Adapter
Adapters Family M68 System

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