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Terry Wood

Jupiter (clearer) Nov 5th 2023 w/Mewlon 180c

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12 set of spacer rings for various sizes in black/white - these rings slip over the thread and are used for fine tuning backfocus. Currently produced sizes are specified below, but custom spacers and thicknesses can be made upon request for a small extra fee.

General:
  • M42
  • M48
  • M54
  • M56
  • M68
Takahashi:
  • M43
  • M72
  • M92
APM-Riccardi:
  • M63
  • M82
Astro-Physics:
  • 2.7" (M70)

Details:
  • Each set comes with 12 individual spacer rings, with 4 different thicknesses. 3 of each are included: 0.4/0.6/0.8/1.0 mm.
  • The width of the rings is 3.95 mm, with a 0.5 mm larger inner diameter for good clearance.
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