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  • 2" Clamping Eyepiece Holder with internal non-marring bronze clamp ring and dual large thumbscrews.
  • Fits all Zeiss instruments with 68mm thread (with 19mm optical height)
  • Fits all Vixen Optics with 60mm thread (with 24mm optical height)
  • Fits all Astrophysics refractors with 2.7 "thread (with 13mm optical height)
  • Fits Skywatcher / Celestron refractors, and all Synta optics with 56mm thread (with 31mm optical height)